AMINE-BASED POLYMER, A PREPARATION PROCESS THEREOF AND USE THEREOF

Abstract

The present invention provides an amine-based polymer, a preparation process thereof and use thereof. The amine-based polymer of the present invention is characterized in that said amine-based polymer contains a polymer main chain, and a structure represented by formula (I) is attached onto the polymer main chain, and said structure is attached to the polymer main chain via an attaching end present in at least one of Group G, Group G and Group A in the structure,

##STR00001##

wherein each of the groups is defined as in the description.

The amine-based polymer of the present invention is suitably used as a detergent, particularly suitably used as a fuel detergent. The amine-based polymer of the present invention is useful as a fuel detergent, and has an extraordinarily excellent detergency and dispersion properties.

Claims

1. An amine-based polymer, which is characterized in that said amine-based polymer contains a polymer main chain, and a structure represented by formula (I) is attached onto the polymer main chain, and said structure is attached to the polymer main chain via an attaching end present in at least one of Group G, Group G and Group A in the structure, ##STR00143## Groups G and G are each independently selected from ##STR00144## at least one of G and G is selected from ##STR00145## (preferably selected from ##STR00146## each Group A present in formula (I) is each independently selected from H, R.sub.11, ##STR00147## (preferably selected from H and R.sub.11); the group Link represents a linking group, which is selected from a single bond and C.sub.1-C.sub.10 linear or branched hydrocarbylene (preferably C.sub.1-C.sub.6 linear or branched alkylene, further preferably C.sub.1-C.sub.4 linear or branched alkylene); * represents an attaching end for attaching to the polymer main chain, wherein two Link groups in each of the group ##STR00148## and the group ##STR00149## can be combined each other so that the group itself has one attaching end represented as * (preferably the moiety ##STR00150## converts to the moiety ##STR00151## wherein m represents an integer of 1-5 (preferably an integer of 1-3, more preferably 1 or 2), more preferably converts to at least one of ##STR00152## Q represents a single bond, R.sub.0O.sub.yR.sub.1 C.sub.1-C.sub.10 linear or branched hydrocarbylene (preferably C.sub.1-C.sub.6 linear or branched alkylene, further preferably C.sub.1-C.sub.4 linear or branched alkylene); each x in formula (I) is each independently 0 or 1; each y in formula (I) is each independently a positive integer (preferably an integer of 1-10, more preferably an integer of 1-3); z is 0 or a positive integer (preferably an integer of 1-10, more preferably an integer of 1-3), when z is 0, Q does not represent a single bond; each R.sub.0 and each R.sub.1 in formula (I) are each independently selected from C.sub.1-C.sub.10 linear or branched alkylene (preferably C.sub.1-C.sub.5 linear or branched alkylene, more preferably methylene, ethylene and propylene); each R.sub.2, each R.sub.3, each R.sub.4, each R.sub.5 and each R.sub.6 present in formula (I) are each independently selected from H and C.sub.1-C.sub.10 linear or branched alkyl (preferably C.sub.1-C.sub.5 linear or branched alkyl, more preferably C.sub.1-C.sub.3 linear or branched alkyl); each R.sub.7 present in formula (I) is each independently selected from C.sub.1-C.sub.10 linear or branched alkylene (preferably C.sub.1-C.sub.5 linear or branched alkylene, more preferably C.sub.1-C.sub.3 linear or branched alkylene) and C.sub.7-C.sub.16 aralkylene (preferably C.sub.7-C.sub.10 phenylalkylene); each R.sub.5 and each R.sub.9 present in formula (I) are each independently selected from H, C.sub.1-C.sub.10 linear or branched alkyl (preferably C.sub.1-C.sub.5 linear or branched alkyl, more preferably C.sub.1-C.sub.3 linear or branched alkyl), C.sub.6-C.sub.16aryl (preferably C.sub.6-C.sub.10aryl) and C.sub.7-C.sub.16alkylaryl (preferably C.sub.7-C.sub.10alkylphenyl); each R.sub.10 and each R.sub.11 present in formula (I) are each independently selected from H and C.sub.1-C.sub.10 linear or branched alkyl (preferably C.sub.1-C.sub.5 linear or branched alkyl, more preferably C.sub.1-C.sub.3 linear or branched alkyl), each R.sub.12 present in formula (I) is each independently selected from OH, halogen (preferably fluorine and chlorine), C.sub.1-C.sub.10 linear or branched alkyloxy (preferably C.sub.1-C.sub.5 linear or branched alkyloxy, more preferably C.sub.1-C.sub.3 linear or branched alkyloxy).

2. The amine-based polymer according to claim 1, wherein, z is not 0, in z repeating units, when x in the terminal repeating unit attached to G-Q- is 0, Q is a single bond; when x in the terminal repeating unit attached to G-Q- is 1, Q is R.sub.0O.sub.yR.sub.1, wherein the attaching end at the R.sub.0 side is attached to G, the attaching end at the R.sub.1 side is attached to the nitrogen atom in the terminal repeating unit ##STR00153## attached to G-Q- in z repeating units.

3. The amine-based polymer according to claim 1, wherein the sum of the total charge numbers of Group G, Group G and Group A in formula (I) is 0.

4. The amine-based polymer according to claim 1, wherein, the polymer main chain of said amine-based polymer is at least one polymer selected from polyolefine, polyester and polyether, preferably is polyolefine, more preferably is homopolymer or copolymer of C.sub.2-20 olefin, more preferably is homopolymer or copolymer of C.sub.2-10 olefin, further preferably selected from one or more of polyethylene, polypropylene, polybutylene, polyisobutylene, polypentene, polyhexylene, polyoctylene, polynonylene and polydecylene.

5. The amine-based polymer according to claim 4, wherein the number-average molecular weight of the polymer main chain is 500-5000, preferably 500-2500, further preferably 500-1300.

6. The amine-based polymer according to claim 1, wherein the polymer main chain of said amine-based polymer is attached via a C bond and/or O bond to an attaching end present in at least one of Group G, Group G and Group A in the structure represented by formula (I); preferably attached to the polymer main chain via an attaching end present in any of Group G, Group G and Group A, more preferably via an attaching end present in any of Group G and Group G.

7. A process for preparing the amine-based polymer according to claim 1, which comprises an acylation reaction step of a polymer comprising the COR.sub.13 group and/or the ##STR00154## group attached onto the polymer main chain with the compound represented by formula (III), ##STR00155## each x in the compound represented by formula (III) is each independently 0 or 1; each y in the compound represented by formula (III) is each independently a positive integer (preferably an integer of 1-10, more preferably an integer of 1-3); z is 0 or a positive integer (preferably an integer of 1-10, more preferably an integer of 1-3); each J is each independently selected from OH, H, ##STR00156## and among others at least one J is selected from ##STR00157## each A in formula (III) is each independently selected from H, R.sub.11 ##STR00158## in the formula (III), each R.sub.0 and each R.sub.1 are each independently selected from C.sub.1-C.sub.10 linear or branched alkylene (preferably C.sub.1-C.sub.5 linear or branched alkylene, more preferably methylene, ethylene and propylene); each R.sub.3, each R.sub.4, each R.sub.6 are each independently selected from H and C.sub.1-C.sub.10 linear or branched alkyl (preferably C.sub.1-C.sub.5 linear or branched alkyl, more preferably C.sub.1-C.sub.3 linear or branched alkyl); each R.sub.7 is each independently selected from C.sub.1-C.sub.10 linear or branched alkylene (preferably C.sub.1-C.sub.5 linear or branched alkylene, more preferably C.sub.1-C.sub.3 linear or branched alkylene) and C.sub.7-C.sub.16 aralkylene (preferably C.sub.7-C.sub.10 phenylalkylene); each R.sub.5 and each R.sub.9 are each independently selected from H, C.sub.1-C.sub.10 linear or branched alkyl (preferably C.sub.1-C.sub.5 linear or branched alkyl, more preferably C.sub.1-C.sub.3 linear or branched alkyl), C.sub.6-C.sub.16aryl (preferably C.sub.6-C.sub.10aryl) and C.sub.7-C.sub.16alkylaryl (preferably C.sub.7-C.sub.10alkylphenyl); each R.sub.11 is each independently selected from H and C.sub.1-C.sub.10 linear or branched alkyl (preferably C.sub.1-C.sub.5 linear or branched alkyl, more preferably C.sub.1-C.sub.3 linear or branched alkyl), R.sub.13 is selected from OH, a halogen atom (preferably fluorine or chlorine), C.sub.1-C.sub.10 linear or branched alkyloxy (preferably C.sub.1-C.sub.5 linear or branched alkyloxy, more preferably C.sub.1-C.sub.3 linear or branched alkyloxy); the group Link represents a linking group, and is selected from a single bond, R.sub.0O.sub.yR.sub.1 and C.sub.1-C.sub.10 linear or branched hydrocarbylene (preferably C.sub.1-C.sub.6 linear or branched alkylene, further preferably C.sub.1-C.sub.4 linear or branched alkylene), when z is 0, the group Link does not represent a single bond.

8. The process according to claim 7, wherein in formula (III), z is not 0, in z repeating units, when x in the terminal repeating unit attached to J-Link is 0, Link is a single bond; when x in the terminal repeating unit attached to J-Link is 1, Link is R.sub.0O.sub.yR.sub.1 or C.sub.1-C.sub.10 linear or branched hydrocarbylene, wherein when Link is R.sub.0O.sub.yR.sub.1, the attaching end at the R.sub.0 side is attached to J, the attaching end at the R.sub.1 side is attached to the N atom of the terminal repeating unit ##STR00159## attached to J-Link in z repeating units.

9. The process according to claim 7, wherein the compound represented by formula (III) is a compound represented by formula (III) ##STR00160## wherein A is each independently selected from H, R.sub.11, ##STR00161## z is a positive integer (preferably an integer of 1-10, more preferably an integer of 1-3); in z repeating units, when x in the terminal repeating unit attached to NH.sub.2-Q- is 0, Q is a single bond; when x in the terminal repeating unit attached to NH.sub.2-Q- is 1, Q is R.sub.0O.sub.yR.sub.1.

10. The process according to claim 7, wherein the compound represented by formula (III) is selected from ##STR00162## wherein x is 1, z is a positive integer (preferably 1-10, more preferably 1-3), Q is R.sub.0O.sub.yR.sub.1.

11. The process according to claim 7, wherein the reaction molar ratio of the polymer comprising the COR.sub.13 group and/or the ##STR00163## group attached onto the polymer main chain to the compound represented by formula (III) is 1:0.1-10, preferably 1:0.5-5, more preferably 1:0.5-2, and further more preferably 1:0.9-1.1.

12. The process according to claim 7, wherein the polymer comprising the COR.sub.13 group and/or the ##STR00164## group attached onto the polymer main chain is a polymer containing q groups of COR.sub.13 and/or ##STR00165## per the polymer molecule, wherein said q is the ratio of the total number of the COR.sub.13 group and the ##STR00166## group in the polymer to the total number of the polymer molecule (q is in the following range: 1q10, preferably 1q5); the polymer main chain of said polymer containing q groups of COR.sub.13 and/or ##STR00167## per the polymer molecule is at least one selected from polyolefin, polyether and polyester, preferably polyolefin, more preferably homopolymer or copolymer of C.sub.2-10 olefin.

13. The process according to claim 7, wherein the polymer main chain of polymer comprising the COR.sub.13 group and/or the ##STR00168## group attached onto the polymer main chain has a number-average molecular weight of 500-5000, preferably 500-2500, further preferably 500-1300.

14. The amino compound according to claim 1, wherein said amine-based polymer comprises a structure represented by the following formula (IV): ##STR00169## wherein A is each independently selected from H, R.sub.0O.sub.yR.sub.1, R.sub.0O.sub.yR.sub.1NH.sub.2 and R.sub.0O.sub.yR.sub.1OH; G is selected from OH, H, ##STR00170## z is an integer of 1-10, preferably an integer of 1-3; x is 0 or 1, in z repeating units, when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 0, x is 0; when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 1, x is 1; PIB represents polyisobutene.

15. The amino compound according to claim 1, wherein said amine-based polymer comprises a structure represented by the following formula (V), ##STR00171## wherein A is each independently selected from R.sub.0O.sub.yR.sub.1H, R.sub.0O.sub.yR.sub.1NH.sub.2 and R.sub.0O.sub.yR.sub.1OH; z is an integer of 1-10, preferably an integer of 1-3; x is 0 or 1, in z repeating units, when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 0, x is 0; when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 1; PIB represents polyisobutene.

16. The amino compound according to claim 1, wherein said amine-based polymer comprises a structure represented by the following formula (VI), ##STR00172## wherein A is each independently selected from H, R.sub.0O.sub.yR.sub.1H, R.sub.0O.sub.yR.sub.1NH.sub.2 and R.sub.0O.sub.yR.sub.1OH; z is an integer of 1-10, preferably an integer of 1-3; x is 0 or 1, in z repeating units, when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 0, x is 0; when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 1, x is 1; PIB represents polyisobutene.

17. The amino compound according to claim 1, wherein said amine-based polymer comprises a structure represented by the following formula (VII), ##STR00173## wherein A is each independently selected from H, ##STR00174## z is an integer of 1-10, preferably an integer of 1-3; x is 0 or 1, in z repeating units, when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 0, x is 0, x is 0; when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 1, x is 1; PIB represents polyisobutene.

18. The amino compound according to claim 1, wherein said amine-based polymer comprises a structure represented by the following formula (VIII), ##STR00175## wherein A is each independently selected from H, ##STR00176## z is an integer of 1-10, preferably an integer of 1-3; x is 0 or 1, in z repeating units, when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 0, x is 0; when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 1, x is 1; PIB represents polyisobutene.

19. A composition comprising the amine-based polymer according to claim 1.

20. Mothed for producing fuel composition, wherein incorporating the amine-based polymer according to claim 1 into a fuel.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0063] FIG. 1 is an infrared spectrum of the polymer of Example 1, in which the secondary amide absorption peak is at 1547 cm.sup.1, the imide CO peak is at 1709 cm.sup.1, and the COC characteristic peak is at 1121 cm.sup.1.

DETAILED DESCRIPTION OF THE INVENTION

[0064] The specific embodiments of the present invention are described in detail below, but it should be noted that the scope of the present invention is not limited by the specific embodiments, but is determined by the appended claims.

[0065] All publications, patent applications, patents and other references mentioned in this specification are hereby incorporated by reference. Unless otherwise defined, all technical and scientific terms used in the specification have the meanings as conventionally understood by those skilled in the art. In case of conflict, the definition of this specification shall prevail.

[0066] When the present specification derives material, substance, method, step, device, component or the like with the expression such as known to those skilled in the art, known in the art, prior art or a synonym thereof, the object derived with said expression covers not only those conventionally used in the art at the time of filing the application, but also those that are not currently used but will become recognized in the art to be suitable for similar purposes.

[0067] In the context of the present specification, any items or matters not mentioned are directly applicable to those known in the art without any change other than those explicitly stated. Moreover, any embodiment described herein can be freely combined with one or more other embodiments described herein, and thus the resulting technical solution or technical concept is considered to be the part of the original disclosure or the original description of the present invention, and should not be considered as new content that has not been disclosed or contemplated herein, unless it is apparent to those skilled in the art that the combination is clearly unreasonable.

[0068] All of percentages, parts, ratios and the like referred to in this specification are based on the weight, unless the basis on the weight does not meet the conventional knowledge of those skilled in the art.

[0069] In practicing or testing the invention, methods and materials similar or equivalent to those described herein can be used, but applicable methods and materials have been described herein.

[0070] In the context of the present specification, the expression halogen refers to fluorine, chlorine, bromine or iodine.

[0071] In the present specification, the term single bond is sometimes used in the definition of a group. By single bond is meant that the group does not exist. For example, the structural formula CH.sub.2-A-CH.sub.3 is assumed, wherein Group A is defined as being selected from a single bond and methyl. In view of this, if A is a single bond, it means that Group A does not exist, and the structural formula is correspondingly simplified to CH.sub.2CH.sub.3.

[0072] In the context of the present specification, the number average molecular weight Mn and the weight average molecular weight Mw are determined by gel permeation chromatography (GPC) unless otherwise specified.

[0073] In the context of the present specification, unless otherwise specified, the gel permeation chromatography is performed on Waters 1515-Gel Permeation Chromatograph (from Waters, USA), with a mobile phase of tetrafuran, a flow rate of 1 mL/min, a column temperature of 35 degrees Celsius, an elution time of 33 min, and a weight fraction of the sample of 0.1%.

[0074] In the context of the present specification, C.sub.1-C.sub.10 hydrocarbylene represents a group obtained by removing two hydrogen atoms, without violating the valence, from a hydrocarbon (alkane, alkene or alkyne) having 1 to 10 carbon atoms, preferably a group obtained by removing one hydrogen atom respectively from each of two different carbon atoms, more preferably a group obtained by removing one hydrogen atom respectively from each of two terminal-end carbon atoms of the hydrocarbon. As C.sub.1-C.sub.10 hydrocarbylene, C.sub.2-C.sub.10 linear or branched alkenylene and C.sub.2-C.sub.10 linear or branched alkynylene can be exemplified. As C.sub.1-C.sub.10 hydrocarbylene, it is preferably C.sub.1-C.sub.10 linear or branched alkylene, more preferably C.sub.1-C.sub.6 linear or branched alkylene, further more preferably C.sub.1-C.sub.4 linear or branched alkylene. For example, methylene, ethylene, propylene, butylene and the like can be exemplified, but it is not limited thereto.

[0075] In the context of the present specification, C.sub.1-C.sub.10 alkylene represents a group obtained by removing two hydrogen atoms, without violating the valence, from an alkane having 1 to 10 carbon atoms, preferably a group obtained by removing one hydrogen atom respectively from each of two different carbon atoms, more preferably a group obtained by removing one hydrogen atom respectively from each of two terminal-end carbon atoms of the alkane. As C.sub.1-C.sub.10 alkylene, it is preferably C.sub.1-C.sub.5 linear or branched alkylene, more preferably C.sub.1-C.sub.4 linear or branched alkylene, more preferably C.sub.1-C.sub.3 linear or branched alkylene. For example, methylene, ethylene, propylene, butylene and the like can be exemplified, but it is not limited thereto.

[0076] In the context of the present specification, C.sub.1-C.sub.10 alkyl represents a group obtained by removing one hydrogen atom, without violating the valence, from an alkane having 1 to 10 carbon atoms, preferably a group obtained by removing one hydrogen atom from one terminal-end carbon atom of the alkane. As C.sub.1-C.sub.10 alkyl, it is preferably C.sub.1-C.sub.5 linear or branched alkyl, more preferably C.sub.1-C.sub.4 linear or branched alkyl, more preferably C.sub.1-C.sub.3 linear or branched alkyl. For example, methyl, ethyl, propyl, iso-propyl, butyl, sec-butyl, tert-butyl, pentyl, iso-pentyl, hexyl, heptyl and the like can be exemplified, but it is not limited thereto.

[0077] In the context of the present specification, C.sub.7-C.sub.16 aralkylene represents a group obtained by removing two hydrogen atoms, without violating the valence, from an aryl alkane having a total carbon atom number of 7 to 16, preferably a group obtained by removing one hydrogen atom respectively from each of two different carbon atoms, more preferably a group obtained by removing one hydrogen atom respectively from each of two carbon atoms of the alkyl moiety of the aryl alkane. As C.sub.7-C.sub.16 aralkylene, it is preferably C.sub.7-C.sub.10 phenylalkylene. Among others, the alkyl moiety can be a linear or branched alkyl. For example, phenylene methyl, phenylene ethyl, phenylene propyl and the like can be exemplified, but it is not limited thereto.

[0078] In the context of the present specification, C.sub.6-C.sub.16 aryl represents a group obtained by removing one hydrogen atom from an aromatic hydrocarbon having the total carbon atom number of 6 to 16. As C.sub.6-C.sub.16 aryl, it is preferably C.sub.6-C.sub.10 aryl. For example, phenyl, biphenyl, naphthyl, fluorenyl, phenanthryl, anthryl and the like can be exemplified, but it is not limited thereto.

[0079] In the context of the present specification, C.sub.7-C.sub.16alkylaryl represents a group obtained by removing one hydrogen atom from an aromatic hydrocarbon having the total carbon atom number of 7 to 16. It can be a group obtained by removing one hydrogen atom from the aryl moiety of an aromatic hydrocarbon or a group obtained by removing one hydrogen atom from the alkyl moiety of an aromatic hydrocarbon, preferably a group obtained by removing one hydrogen atom from the alkyl moiety of an aromatic hydrocarbon. As C.sub.7-C.sub.16alkylaryl, it is preferably C.sub.7-C.sub.10alkylphenyl. Among others, the alkyl moiety can be a linear or branched alkyl. For example, benzyl, phenylethyl, phenylpropyl, dimethylphenyl, naphthylmethyl, naphthylethyl and the like can be exemplified, but it is not limited thereto.

[0080] In the context of the present specification, C.sub.1-C.sub.10 alkyloxy represents a group attached aforesaid C.sub.1-C.sub.16 alkyl to O group. As C.sub.1-C.sub.10 alkyloxy, it is preferably C.sub.1-C.sub.5 alkyloxy, more preferably C.sub.1-C.sub.3 linear or branched alkyloxy.

[Amine-Based Polymer]

[0081] The present invention provides an amine-based polymer.

[0082] The amine-based polymer comprises a polymer main chain, and a structure represented by the following formula (I) is attached to the polymer main chain. Said structure is attached to the polymer main chain via an attaching end present in at least one of Group G, Group G and Group A in the structure.

##STR00049##

wherein, Group G and Group G are each independently selected from

##STR00050##

at least one of G and G is selected from

##STR00051##

(preferably selected from

##STR00052##

each Group A present in formula (I) is each independently selected from H, R.sub.11,

##STR00053##

(preferably selected from H and R.sub.11); the group Link represents a linking group, which is selected from a single bond and C.sub.1-C.sub.10 linear or branched hydrocarbylene (preferably C.sub.1-C.sub.6 linear or branched alkylene, further preferably C.sub.1-C.sub.4 linear or branched alkylene); * represents an attaching end for attaching to the polymer main chain, wherein two Link groups in each of the group

##STR00054##

and the group

##STR00055##

can be combined each other so that the group itself has one attaching end represented as * (preferably the

##STR00056##

moiety converts to the

##STR00057##

moiety, wherein m represents an integer of 1-5 (preferably an integer of 1-3, more preferably 1 or 2), more preferably converts to at least one of

##STR00058##

Q represents a single bond, R.sub.0O.sub.yR.sub.1 or C.sub.1-C.sub.10 linear or branched hydrocarbylene (preferably C.sub.1-C.sub.6 linear or branched alkylene, further preferably C.sub.1-C.sub.4 linear or branched alkylene); each x in formula (I) is each independently 0 or 1; each y in formula (I) is each independently a positive integer (preferably an integer of 1-10, more preferably an integer of 1-3); z is 0 or a positive integer (preferably an integer of 1-10, more preferably an integer of 1-3), when z is 0, Q does not represent a single bond; each R.sub.0 and each R.sub.1 in formula (I) are each independently selected from C.sub.1-C.sub.10 linear or branched alkylene (preferably C.sub.1-C.sub.5 linear or branched alkylene, more preferably methylene, ethylene and propylene); each R.sub.2, each R.sub.3, each R.sub.4, each R.sub.5 and each R.sub.6 present in formula (I) are each independently selected from H and C.sub.1-C.sub.10 linear or branched alkyl (preferably C.sub.1-C.sub.5 linear or branched alkyl, more preferably C.sub.1-C.sub.3 linear or branched alkyl); each R.sub.7 present in formula (I) is each independently selected from C.sub.1-C.sub.10 linear or branched alkylene (preferably C.sub.1-C.sub.5 linear or branched alkylene, more preferably C.sub.1-C.sub.3 linear or branched alkylene) and C.sub.7-C.sub.16 aralkylene (preferably C.sub.7-C.sub.10 phenylalkylene); each R.sub.8 and each R.sub.9 present in formula (I) are each independently selected from H, C.sub.1-C.sub.10 linear or branched alkyl (preferably C.sub.1-C.sub.5 linear or branched alkyl, more preferably C.sub.1-C.sub.3 linear or branched alkyl), C.sub.6-C.sub.16aryl (preferably C.sub.6-C.sub.10aryl) and C.sub.7-C.sub.16alkylaryl (preferably C.sub.7-C.sub.10alkylphenyl); each R.sub.10 and each R.sub.11 present in formula (I) are each independently selected from H and C.sub.1-C.sub.10 linear or branched alkyl (preferably C.sub.1-C.sub.5 linear or branched alkyl, more preferably C.sub.1-C.sub.3 linear or branched alkyl), each R.sub.12 present in formula (I) is each independently selected from OH, halogen (preferably fluorine and chlorine), C.sub.1-C.sub.10 linear or branched alkyloxy (preferably C.sub.1-C.sub.5 linear or branched alkyloxy, more preferably C.sub.1-C.sub.3 linear or branched alkyloxy).

[0083] In an embodiment according to the present invention, At least one of Group G and Group G is selected from

##STR00059##

In an embodiment according to the present invention, Group A can be selected from

##STR00060##

[0084] According to the present invention, * represents an attaching end for attaching the structure represented by formula (I) to the polymer main chain.

[0085] In an embodiment according to the present invention, the polymer main chain of the amine-based polymer can be attached to an attaching end present in at least one of Group G, Group G and Group A in the structure represented by formula (I) via the C bond and/or the O bond. In an embodiment of the present invention, the C bond and/or the O bond locate on the polymer main chain, and thus constitute a part of the polymer main chain backbone.

[0086] More specifically, in an embodiment according to the present invention, the structure represented by formula (I) combines via an unbonded bond at a position indicated by * with the C bond and/or the O bond of the polymer main chain to form a covalent bond, thereby the structure represented by formula (I) is attached to the polymer main chain.

[0087] Based on this attaching manner, the structure represented by formula (I) is usually hanged on the polymer main chain in form of a terminal group, a side chain or both, thereby forming a hanging group (sometimes also referred to as a pendant group herein).

[0088] In an embodiment according to the present invention, the structure represented by formula (I) can be attached to the polymer main chain via an attaching end present in any of Group G, Group G and

[0089] Group A.

[0090] In an embodiment according to the present invention, the structure represented by formula (I) can be attached to the polymer main chain via an attaching end present in any of Group G and Group G.

[0091] In an embodiment according to the present invention, in the structure represented by formula (I), there may be one or more Groups A, or Group A is absent (that is to say, each x in z repeating units is 0).

[0092] In an embodiment according to the present invention, two Link groups in each of the group

##STR00061##

and the group

##STR00062##

can be combined each other so that the group itself has one attaching end represented as *. In an embodiment according to the present invention, the

##STR00063##

moiety converts to the

##STR00064##

moiety, preferably converts to at least one of

##STR00065##

wherein m represents an integer of 1-5, preferably an integer of 1-3, more preferably 1 or 2.

[0093] In an embodiment according to the present invention, in formula (I), z is not 0, in z repeating units, when x in the terminal repeating unit attached to G-Q- is 0, Q is a single bond; when x in the terminal repeating unit attached to G-Q- is 1, Q is R.sub.0O.sub.yR.sub.1, wherein the attaching end at the R.sub.0 side is attached to G, the attaching end at the R.sub.1 side is attached to the nitrogen atom in the terminal repeating unit

##STR00066##

attached to G-Q- in z repeating units.

[0094] In an embodiment according to the present invention, In formula (I), when z is 0, Q represents R.sub.0O.sub.yR.sub.1 or C.sub.1-C.sub.10 linear or branched hydrocarbylene, preferably C.sub.1-C.sub.10 to linear or branched hydrocarbylene, more preferably C.sub.1-6 linear or branched alkylene, further preferably C.sub.1-4 linear or branched alkylene.

[0095] In an embodiment according to the present invention, In formula (I), when z is 1, that is to say, when there is only one repeating unit

##STR00067##

the structure represented by formula (I) is

##STR00068##

at this time, when x is 0, Q is a single bond, the structure represented by formula (I) is GR.sub.0O.sub.yR.sub.1-G; when x is 1, Q is R.sub.0O.sub.yR.sub.1, the structure represented by formula (I) is

##STR00069##

[0096] In an embodiment according to the present invention, In formula (I), when z is greater than 1, that is to say, there are z repeating units

##STR00070##

the structure represented by formula (I) is

##STR00071##

that is

##STR00072##

the omission symbol * * * therein represents the middle z repeating units

##STR00073##

At this time, when x in the terminal repeating unit attached to G-Q- (x in the left side of formula (II)) is 0, Q is a single bond, that is to say, G is directly attached to R.sub.0 in the terminal repeating unit; when x in the terminal repeating unit attached to G-Q- (x in the left side of formula (II)) is 1, Q is R.sub.0O.sub.yR.sub.1, in said Q, the attaching end at the R.sub.0 side is attached to G, and the attaching end at the R.sub.1 side is attached to the nitrogen atom in the terminal repeating unit in z repeating units.

[0097] In an embodiment according to the present invention, in formula (I), for Group G and Group G, sometimes they could be selected from the groups having positive or negative charge(s) such as

##STR00074##

for Group A (possibly one or more, or also possible zero), sometimes it could be selected from the groups having positive or negative charge(s) such as

##STR00075##

When Group G, Group G and Group A in formula (I) are selected from the groups having positive or negative charge(s), it is possible that the sum of the charges carried by Group G, Group G and Group A in formula (I) is 0, that is to say, an inner salt is formed in the amine-based polymer molecule. It is also possible that the sum of the charge numbers of the charged amine-based polymer ions and the counter ions is 0, that is to say, the charged amine-based polymer ions and the counter ions form a salt. In summary, the sum of the number of charges carried by the amine-based polymer molecule as a whole is zero, that is to say, the amine-based polymer as a whole is an electrically neutral molecule. In an embodiment according to the present invention, as the counter ion, it can be a cation, which may be at least one selected from the group consisting of lithium ion, sodium ion, potassium ion, magnesium ion, calcium ion, and barium ion; or an anion, which may be at least one selected from the group consisting of a halogen ion, a nitrate, a phosphate, a sulfate, and an acetate.

[0098] In an embodiment according to the present invention, in formula (I), the group Link represents a linking group, which is selected from a single bond and C.sub.1-C.sub.10 linear or branched hydrocarbylene. Herein, as said C.sub.1-C.sub.10 linear or branched hydrocarbylene, for example, C.sub.1-C.sub.10 linear or branched alkylene, C.sub.2-C.sub.10 linear or branched alkenylene and C.sub.2-C.sub.10 linear or branched alkynylene can be exemplified, and it is preferably C.sub.1-C.sub.6 linear or branched alkylene, further preferably C.sub.1-C.sub.4 linear or branched alkylene.

[0099] In an embodiment according to the present invention, each R.sub.0 and each R.sub.1 in formula (I) are identical to or different from each other, and are each independently selected from C.sub.1-C.sub.10 linear or branched alkylene, preferably selected from C.sub.1-C.sub.5 linear or branched alkylene, more preferably selected from methylene, ethylene and propylene.

[0100] In an embodiment according to the present invention, each R.sub.2, each R.sub.3, each R.sub.4, each R.sub.5 and each R.sub.6 present in formula (I) are each independently selected from H and C.sub.1-C.sub.10 linear or branched alkyl, preferably selected from H and C.sub.1-C.sub.5 linear or branched alkyl, more preferably selected from H and C.sub.1-C.sub.3 linear or branched alkyl.

[0101] In an embodiment according to the present invention, each R.sub.7 present in formula (I) is each independently selected from C.sub.1-C.sub.10 linear or branched alkylene and C.sub.7-C.sub.16 aralkylene, preferably selected from C.sub.1-C.sub.5 linear or branched alkylene and C.sub.7-C.sub.10 phenylalkylene, more preferably C.sub.1-C.sub.3 linear or branched alkylene.

[0102] In an embodiment according to the present invention, each R.sub.8 and each R.sub.9 present in formula (I) are each independently selected from H, C.sub.1-C.sub.10 linear or branched alkyl, C.sub.6-C.sub.16 aryl and C.sub.7-C.sub.16alkylaryl, preferably selected from H, C.sub.1-C.sub.5 linear or branched alkyl, C.sub.6-C.sub.10 aryl and C.sub.7-C.sub.10alkylphenyl, more preferably selected from H and C.sub.1-C.sub.3 linear or branched alkyl.

[0103] In an embodiment according to the present invention, each R.sub.10 and each R.sub.11 present in formula (I) are each independently selected from H and C.sub.1-C.sub.10 linear or branched alkyl, preferably selected from H and C.sub.1-C.sub.5 linear or branched alkyl, more preferably selected from H and C.sub.1-C.sub.3 linear or branched alkyl.

[0104] In an embodiment according to the present invention, each R.sub.12 present in formula (I) is each independently selected from OH, halogen, C.sub.1-C.sub.10 linear or branched alkyloxy, preferably selected from OH, fluorine, chlorine, C.sub.1-C.sub.5 linear or branched alkyloxy, more preferably selected from OH, fluorine, chlorine and C.sub.1-C.sub.3 linear or branched alkyl.

[0105] In an embodiment according to the present invention, each x in formula (I) is each independently 0 or 1.

[0106] In an embodiment according to the present invention, each y in formula (I) is each independently a positive integer, preferably an integer of 1-10, more preferably an integer of 1-3.

[0107] In an embodiment according to the present invention, in formula (I), z is 0 or a positive integer, preferably an integer of 1-10, more preferably an integer of 1-3.

[0108] In an embodiment according to the present invention, when z is 0, Q does not represent a single bond.

[0109] In an embodiment according to the present invention, the amine-based polymer of the present invention has a polymer main chain, and said polymer main chain is attached to an attaching end present in Group G, Group G or Group A of the structure represented by formula (I) via a C bond and/or a O bond,

##STR00076##

wherein, Group G or Group G is each independently selected from

##STR00077##

at least one G or G is selected from

##STR00078##

(preferably selected from

##STR00079##

each Group A present in formula (I) is each independently selected from H, R.sub.11,

##STR00080##

(preferably selected from H, R.sub.11); the group Link represents a linking group, which is selected from a single bond and C.sub.1-10 hydrocarbylene (preferably C.sub.1-6 linear or branched alkylene, further preferably C.sub.1-4 linear or branched alkylene); * represents an attaching end for attaching to the C bond or the O bond; Q is a single bond or R.sub.0O.sub.yR.sub.1; each x in formula (I) is each independently selected from 0 or 1; each yin formula (I) is each independently a positive integral (preferably 1-10, most preferably 1-3); z is 0 or a positive integer (preferably 1-10, most preferably 1-3); each R.sub.0 and each R.sub.1 in formula (I) are each independently selected from C.sub.1-C.sub.10 alkylene (preferably C.sub.1-C.sub.5 linear or branched alkylene, most preferably methylene, ethylene, propylene); each R.sub.2, each R.sub.3, each R.sub.4, each R.sub.5 and each R.sub.6 present in formula (I) is each independently selected from H or C.sub.1-C.sub.10 alkyl (preferably H or C.sub.1-C.sub.5 linear or branched alkyl, most preferably H or C.sub.1-C.sub.3 linear or branched alkyl); each R.sub.7 present in formula (I) is each independently selected from C.sub.1-C.sub.10 alkylene, C.sub.6-C.sub.16 aralkylene (preferably C.sub.1-C.sub.5 linear or branched alkylene, C.sub.6-C.sub.10 phenylalkylene, most preferably C.sub.1-C.sub.3 linear or branched alkylene); each R.sub.8 and each R.sub.9 present in formula (I) are each independently selected from H, C.sub.1-C.sub.10 alkyl and C.sub.6-C.sub.16 aryl or alkylaryl (preferably H, C.sub.1-C.sub.5 linear or branched alkyl and C.sub.6-C.sub.10 phenyl or alkylphenyl, most preferably H or C.sub.1-C.sub.3 linear or branched alkyl); each R.sub.10, each R.sub.11 and each R.sub.12 present in formula (I) are each independently selected from H or C.sub.1-C.sub.10 alkyl (preferably H or C.sub.1-C.sub.5 linear or branched alkyl, most preferably H or C.sub.1-C.sub.3 linear or branched alkyl).

[0110] In an embodiment according to the present invention, the polymer main chain of the amine-based polymer may be those commonly used in the art as fuel detergent, including but not limited to at least one selected from polyolefin, polyester and polyether, further preferably polyolefin, more homopolymer or copolymer of C.sub.2-20 olefin, more preferably homopolymer or copolymer of C.sub.2-10 olefin. In an embodiment according to the present invention, for the polymer main chain of the amine-based polymer, for example, polyethylene, polypropylene, polybutylene, polyisobutylene, polypentene, polyhexylene, polyoctylene, polynonylene, polydecylene and the like can be exemplified, but its example is not limited thereto. In an embodiment according to the present invention, the polymer main chain has a number-average molecular weight of 500-5000, preferably 500-2500, further preferably 500-1300.

[0111] In an embodiment according to the present invention, when one or more structures represented by formula (I) are attached to one polymer main chain of the amine-based polymer, that is to say, one or more structures represented by formula (I) as pendant groups are attached to one polymer main chain of the amine-based polymer, these pendant groups are independently present with each other, and the definitions of each group and each symbol in these pendant groups can be identical to or different from each other for different pendant groups/within the same pendant group. In this situation, these structures represented by formula (I) as pendant groups are each independently attached to the polymer main chain via attaching ends present in at least one of Group G, Group G and Group A in each structure.

[0112] In an embodiment according to the present invention, when one structure represented by formula (I) is attached to one or more polymer main chains, that is to say, said one structure represented by formula (I) is attached to one or more polymer main chains, these polymer main chains are mutally independent to each other, and these polymer main chains can be each independently selected from those mentioned above as the polymer main chain. In this situation, the structure represented by formula (I) is attached to these polymer main chains via attaching ends present in at least one of Group G, Group G and Group A of the structure represented by formula (I).

[0113] In an embodiment according to the present invention, a polymer contains the polymer main chain and has the structure represented by formula (I) attached to the polymer main chain, it is the amine-based polymer of the present invention. The amine-based polymer can be a single polymer that is the polymer having the structure represented by formula (I) attached to the polymer main chain, and can also be a mixture containing the polymer having the structure represented by formula (I) attached to the polymer main chain.

[0114] In an embodiment of the present invention, a mixture containing the polymer having the structure represented by formula (I) refers to that each polymer contains the polymer main chain and has the structure represented by formula (I), but it is a mixture of two or more polymers, wherein the structure, the polymerization degree and/or the type of the main chain in each polymer are different from each other.

[0115] In an embodiment of the present invention, a mixture containing the polymer having the structure represented by formula (I) refers to that each polymer contains the polymer main chain and has the structure represented by formula (I), but it is a mixture of two or more polymers, wherein the structure represented by formula (I) attached in each polymer is different from each other.

[0116] In an embodiment of the present invention, the amine-based polymer is a mixture containing the polymer in which the structure represented by formula (I) is attached to the polymer main chain.

[Process for Preparing the Amine-Based Polymer]

[0117] The present invention also provides a process for preparing the amine-based polymer, which comprising an acylation reaction step of a polymer comprising the COR.sub.13 group and/or the

##STR00081##

group attached onto the polymer main chain with the compound represented by formula (III),

##STR00082##

each x in the compound represented by formula (III) is each independently 0 or 1; each y in the compound represented by formula (III) is each independently a positive integer (preferably an integer of 1-10, more preferably an integer of 1-3); z is 0 or a positive integer (preferably an integer of 1-10, more preferably an integer of 1-3); each J is each independently selected from OH, H,

##STR00083##

and among others at least one J is selected from

##STR00084##

each A in formula (III) is each independently selected from H, R.sub.11,

##STR00085##

in the formula (III), each R.sub.0 and each R.sub.1 are each independently selected from C.sub.1-C.sub.10 linear or branched alkylene (preferably C.sub.1-C.sub.5 linear or branched alkylene, more preferably methylene, ethylene and propylene); each R.sub.3, each R.sub.4, each R.sub.6 are each independently selected from H and C.sub.1-C.sub.10 linear or branched alkyl (preferably C.sub.1-C.sub.5 linear or branched alkyl, more preferably C.sub.1-C.sub.3 linear or branched alkyl); each R.sub.7 is each independently selected from C.sub.1-C.sub.10 linear or branched alkylene (preferably C.sub.1-C.sub.5 linear or branched alkylene, more preferably C.sub.1-C.sub.3 linear or branched alkylene) and C.sub.7-C.sub.16 aralkylene (preferably C.sub.7-C.sub.10 phenylalkylene); each R.sub.8 and each R.sub.9 are each independently selected from H, C.sub.1-C.sub.10 linear or branched alkyl (preferably C.sub.1-C.sub.5 linear or branched alkyl, more preferably C.sub.1-C.sub.3 linear or branched alkyl), C.sub.6-C.sub.16aryl (preferably C.sub.6-C.sub.10aryl) and C.sub.7-C.sub.16alkylaryl (preferably C.sub.7-C.sub.10 alkylphenyl); each R.sub.11 is each independently selected from H and C.sub.1-C.sub.10 linear or branched alkyl (preferably C.sub.1-C.sub.5 linear or branched alkyl, more preferably C.sub.1-C.sub.3 linear or branched alkyl), R.sub.13 is selected from OH, a halogen atom (preferably fluorine or chlorine), C.sub.1-C.sub.10 linear or branched alkyloxy (preferably C.sub.1-C.sub.5 linear or branched alkyloxy, more preferably C.sub.1-C.sub.3 linear or branched alkyloxy); the group Link represents a linking group, and is selected from a single bond, R.sub.0O.sub.yR.sub.1 and C.sub.1-C.sub.10 linear or branched hydrocarbylene (preferably C.sub.1-C.sub.6 linear or branched alkylene, further preferably C.sub.1-C.sub.4 linear or branched alkylene), when z is 0, the group Link does not represent a single bond.

[0118] In an embodiment according to the present invention, in formula (III), z is not 0, in z repeating units, when x in the terminal repeating unit attached to J-Link is 0, Link is a single bond; when x in the terminal repeating unit attached to J-Link is 1, Link is R.sub.0O.sub.yR.sub.1 or C.sub.1-C.sub.10 linear or branched hydrocarbylene, wherein when Link is R.sub.0O.sub.yR.sub.1, the attaching end at the R.sub.0 side is attached to J, the attaching end at the R.sub.1 side is attached to the N atom of the terminal repeating unit

##STR00086##

attached to J-Link in z repeating units.

[0119] In an embodiment according to the present invention, the compound represented by formula (III) can be the following compound represented by formula (III),

##STR00087##

wherein A is each independently selected from H, R.sub.11,

##STR00088##

z is a positive integer (preferably an integer of 1-10, more preferably an integer of 1-3); in z repeating units, when x in the terminal repeating unit attached to NH2-Q- is 0, Q is a single bond; when x in the terminal repeating unit attached to NH2-Q- is 1, Q is R.sub.0O.sub.yR.sub.1.

[0120] In an embodiment according to the present invention, the compound represented by formula (III) can be

##STR00089##

wherein x is 1, z is a positive integer (preferably an integer of 1-10, more preferably an integer of 1-3), Q is R.sub.0O.sub.yR.sub.1.

[0121] As a specific example of the compound represented by formula (III), for example, 2-[2-(2-aminoethoxy)ethoxy]ethylamine, 3,6,9-trioxaundecane-1,11-diamine and N,N-dimethylpropanediamine can be exemplified.

[0122] In an embodiment according to the present invention, the reaction molar ratio of the polymer comprising the COR.sub.13 group and/or the

##STR00090##

group attached onto the polymer main chain to the compound represented by formula (III) depends on the structure of the amine-based polymer to be prepared, that is to say, depends on the amount of the compound represented by formula (III) to be reacted with each unit of the polymer, and is generally 1:0.1-10, preferably 1:0.5-5, more preferably 1:0.5-2, further preferably 1:0.9-1.1.

[0123] In an embodiment according to the present invention, the polymer comprising the COR.sub.13 group and/or the

##STR00091##

group attached onto the polymer main chain and the compound represented by formula (III) are reacted at a reaction temperature of 40 C.-180 C., preferably 40-150 C., more preferably 40-80 C.

[0124] In an embodiment according to the present invention, the polymer comprising the COR.sub.13 group and/or the

##STR00092##

group attached onto the polymer main chain and the compound represented by formula (III) are reacted under a reaction pressure of 0.1-10 MPa, preferably 0.1-5 MPa.

[0125] In an embodiment according to the present invention, the polymer comprising the COR.sub.13 group and/or the

##STR00093##

group attached onto the polymer main chain and the compound represented by formula (III) are reacted for a reaction period of 0.1 h-5 h, preferably 0.2 h-2 h, more preferably 0.2 h-1.5 h.

[0126] In an embodiment according to the present invention, in the reaction of the polymer comprising the COR.sub.13 group and/or the

##STR00094##

group attached onto the polymer main chain with the compound represented by formula (III), a solvent may be used, or a solvent may not be used. When a solvent is used, as the solvent, one or more of toluene, petroleum ether and base oil can be used, and petroleum ether is preferably used. The amount of the solvent may be a conventionally used amount, preferably from 10% to 200% by mass of the polymer comprising the COR.sub.13 group and/or the

##STR00095##

group attached onto the polymer main chain. The solvent can be removed after completion of the reaction by methods known to those skilled in the art.

[0127] In an embodiment according to the present invention, the process for preparing the amine-based polymer comprising an acylation reaction step of a polymer comprising the COOH group and/or the

##STR00096##

group attached onto the polymer main chain with the compound represented by formula (III),

##STR00097##

each x in the compound represented by formula (III) is each independently selected from 0 or 1; each y in the compound represented by formula (III) is each independently a positive integer (preferably 1-10, most preferably 1-3); z is 0 or a positive integer (preferably 1-10, most preferably 1-3); each J is each independently selected from OH, H,

##STR00098##

and among others at least one J is selected from

##STR00099##

A is selected from

##STR00100##

in the formula (III), each R.sub.0 and each R.sub.1 are each independently selected from C.sub.1-C.sub.10 alkylene (preferably C.sub.1-C.sub.5 linear or branched alkylene, most preferably methylene, ethylene, propylene); each R.sub.3, each R.sub.4, each R.sub.5, and each R.sub.6 present in formula (I) are each independently selected from H or C.sub.1-C.sub.10 alkyl (preferably H or C.sub.1-C.sub.5 linear or branched alkyl, most preferably H or C.sub.1-C.sub.3 linear or branched alkyl); each R.sub.7 present in formula (I) is each independently selected from C.sub.1-C.sub.10 alkylene, C.sub.6-C.sub.16 aralkylene (preferably C.sub.1-C.sub.5 linear or branched alkylene, C.sub.6-C.sub.10 phenylalkylene, most preferably C.sub.1-C.sub.3 linear or branched alkylene); each R.sub.5 and each R.sub.9 present in formula (I) are each independently selected from H, C.sub.1-C.sub.10 alkyl and C.sub.6-C.sub.16 aryl or alkylaryl (preferably H, C.sub.1-C.sub.5 linear or branched alkyl and C.sub.6-C.sub.10 phenyl or alkylphenyl, most preferably H or C.sub.1-C.sub.3 linear or branched alkyl); the group Link represents a linking group, which is selected from a single bond and C.sub.1-10 hydrocarbylene (preferably C.sub.1-6 linear or branched alkylene, further preferably C.sub.1-4 linear or branched alkylene).

[0128] In an embodiment according to the present invention, the polymer comprising the COR.sub.13 group and/or the

##STR00101##

group attached onto the polymer main chain is preferably a polymer containing q groups of COR.sub.13 and/or

##STR00102##

per the polymer molecule, wherein said q is the ratio of the total number of the COR.sub.13 group and the

##STR00103##

group in the polymer to the total number of the polymer molecule. Since it is an average, it can be a non-integer number. In an embodiment according to the present invention, q is in the following range: 1q10, preferably 1q5.

[0129] The polymer main chain of said polymer containing q groups of COR.sub.13 and/or

##STR00104##

per the polymer molecule is preferably at least one selected from polyolefin, polyether and polyester. In an embodiment according to the present invention, said polymer main chain is polyolefin. In an embodiment according to the present invention, said polymer main chain is preferably homopolymer or copolymer of C.sub.2-10 olefin. In an embodiment according to the present invention, as said polymer main chain, polyethylene, polypropylene, polybutylene, polyisobutylene, polypentene, polyhexylene, polyoctylene, polynonylene, polydecylene and the like can be exemplified, but its example is not limited thereto. In an embodiment according to the present invention, the polymer main chain of the polymer comprising the COR.sub.13 group and/or the

##STR00105##

group attached onto the polymer main chain has a number-average molecular weight of 500-5000, preferably 500-2500, further preferably 500-1300.

[0130] In an embodiment according to the present invention, the polymer comprising the COOH group and/or the

##STR00106##

group attached onto the polymer main chain is a polymer containing q groups of COOH and/or

##STR00107##

in the molecule, wherein said q is the ratio of the total number of the COOH group and the

##STR00108##

group in the polymer to the total number of the polymer molecule (preferably, q is in the following range: 1q10, more preferably 1q5). Said polymer containing q groups of COOH and/or

##STR00109##

in the molecule is polyolefin, polyether or polyester containing q groups of COOH and/or

##STR00110##

in the molecule.

[0131] In an embodiment according to the present invention, the polymer comprising the COR.sub.13 group and/or the

##STR00111##

group attached onto the polymer main chain is preferably a product of the addition reaction of a polymer containing CC bond(s) with an alkenyl acid and/or an alkenyl anhydride, more preferably a product of the addition reaction of a polymer containing u CC bonds per the polymer molecule with an alkenyl acid and/or an alkenyl anhydride. Among others, said u is a ratio of the total number of CC bonds in the polymer to the total number of the polymer molecule. Since it is an average, it can be a non-integer number. In an embodiment according to the present invention, u is in the following range: 1u10, more preferably 1u5.

[0132] In an embodiment according to the present invention, the polymer comprising the COOH group and/or the

##STR00112##

group attached onto the polymer main chain is a product of the addition reaction of a polymer containing CC bond(s) with an alkenyl acid and/or an alkenyl anhydride (preferably a product of the addition reaction of a polymer containing u CC bonds in the molecule with an alkenyl acid and/or an alkenyl anhydride, wherein said u is a ratio of the total number of CC bonds in the polymer to the total number of the polymer molecule, u is preferably in the following range: 1u10, more preferably 1u5; more preferably a product of the addition reaction of polyolefin, polyether or polyester containing u CC bonds in the molecule with an alkenyl acid and/or an alkenyl anhydride).

[0133] In an embodiment according to the present invention, the polymer comprising the COR.sub.13 group and/or the

##STR00113##

group attached onto the polymer main chain is preferably a product of the addition reaction of a polymer containing u CC bonds per the polymer molecule and being at least one selected from polyolefin, polyether and polyester (preferably polyolefin, more preferably homopolymer or copolymer of C.sub.2-10 olefin) with an alkenyl acid and/or an alkenyl anhydride.

[0134] In an embodiment according to the present invention, said polymer containing u CC bonds per the polymer molecule is preferably polyolefin, more preferably homopolymer or copolymer of C.sub.2-10 olefin. In an embodiment according to the present invention, as the polymer moiety, polyethylene, polypropylene, polybutylene, polyisobutylene, polypentene, polyhexylene, polyoctylene, polynonylene, polydecylene and the like can be exemplified, but its example is not limited thereto.

[0135] In an embodiment according to the present invention, said polymer containing CC bond(s) is preferably a polymer containing 1-2 CC bond(s) per the polymer molecule, more preferably a polyolefin containing 1-2 CC bond(s) per the polymer molecule, more preferably a homopolymer or copolymer of C.sub.2-10 olefin containing 1-2 CC bond(s) per the polymer molecule, further preferably a homopolymer or copolymer of C.sub.2-10 -olefin containing 1-2 CC bond(s) per the polymer molecule.

[0136] In an embodiment according to the present invention, said polyolefin containing 1-2 CC bond(s) per the polymer molecule can be one or more selected from polyethylene, polypropylene, polybutylene, polyisobutylene, polypentene, polyhexylene, polyoctylene, polynonylene and polydecylene. In an embodiment according to the present invention, said polymer containing the CC bond(s) in the polymer molecule is preferably a poly--olefin containing more than one, preferably 1-2 CHCH.sub.2 bond(s) per the polymer molecule obtained by polymerization of C.sub.2-10 -olefin. In an embodiment according to the present invention, the poly--olefin containing more than one, preferably 1-2 CHCH.sub.2 bond(s) per the polymer molecule for example can be one or more selected from polyethylene, polypropylene, polybutylene, polyisobutylene, polypentene, polyhexylene, polyoctylene, polynonylene and polydecylene.

[0137] In an embodiment according to the present invention, the polymer main chain of the polymer containing CC bond(s) has a number-average molecular weight of 500-5000, preferably 500-2500, further preferably 500-1300.

[0138] According to the present invention, the alkenyl acid refers to an organic acid having at least one carbon-carbon double bond in its molecular structure, and preferably an organic acid having one carbon-carbon double bond in its molecular structure. The alkenyl anhydride refers to an organic acid anhydride having at least one carbon-carbon double bond in its molecular structure, and is preferably an organic acid anhydride formed by dehydration of the above alkenyl acid. In an embodiment according to the present invention, said alkenyl acid and/or said alkenyl anhydride are preferably a C.sub.3-C.sub.10 alkenyl acid and/or a C.sub.4-C.sub.20 alkenyl acid anhydride having at least one (preferably one) carbon-carbon double bond, and more preferably a C.sub.4-C.sub.10 alkenyl diacid and/or a C.sub.4-C.sub.15 alkenyl diacid anhydride having at least one (preferably one) carbon-carbon double bond.

[0139] According to the present invention, the C.sub.3-C.sub.10 alkenyl acid having at least one (preferably one) carbon-carbon double bond refers to a monobasic organic acid having a total carbon number of 3-10 and containing at least one (preferably one) carbon-carbon double bond. As the specific example, for example one or more of acrylic acid, butenoic acid, pentenoic acid, hexenoic acid, heptenoic acid, octylenic acid, nonenoic acid, and decylenic acid can be exemplified, but it is not limited thereto. According to the present invention, the C.sub.4-C.sub.10 alkenyl diacid having at least one (preferably one) carbon-carbon double bond refers to a dibasic organic acid having a total carbon number of 4-10 and containing at least one (preferably one) carbon-carbon double bond. As the specific example, for example one or more of butene diacid, pentene diacid, hexene diacid, heptylene diacid, octene diacid, nonene diacid, and decylene diacid can be exemplified, but it is not limited thereto. The C.sub.4-C.sub.20 alkenyl anhydride containing at least one (preferably one) carbon-carbon double bond refers to an organic acid anhydride having a total carbon number of 4-20 and containing at least one (preferably one) carbon-carbon double bond. As the specific example, for example acrylic anhydride, butenoic anhydride and the like can be exemplified, but it is not limited thereto.

[0140] According to the present invention, the C.sub.4-C.sub.15 alkenyl diacid anhydride containing at least one (preferably one) carbon-carbon double bond refers to an acid anhydride formed of a dibasic organic acid having a total carbon number of 4-15 and containing at least one (preferably one) carbon-carbon double bond. As the specific example, for example one or more of maleic anhydride, butene diacid anhydride, pentene diacid anhydride, hexene diacid anhydride, heptylene diacid anhydride, octene diacid anhydride, nonene diacid anhydride and decylene diacid anhydride can be exemplified, but it is not limited thereto.

[0141] In an embodiment of the present invention, said alkenyl acid and/or said alkenyl anhydride is C.sub.3-10alkenyl acid and/or alkenyl anhydride (preferably C.sub.4-10 alkenyl diacid and/or alkenyl diacid anhydride, more preferably one or more of acrylic acid, butenoic acid, pentenoic acid, hexenoic acid, heptenoic acid, octylenic acid, nonenoic acid, decylenic acid, butene diacid, pentene diacid, hexene diacid, heptylene diacid, octene diacid, nonene diacid, decylene diacid, maleic anhydride, butene diacid anhydride, pentene diacid anhydride, hexene diacid anhydride, heptylene diacid anhydride, octene diacid anhydride, nonene diacid anhydride and decylene diacid anhydride).

[0142] In an embodiment of the present invention, the reaction molar ratio of the polymer containing CC bond(s) to the alkenyl acid and/or the alkenyl anhydride depends on the amount of alkenyl acid and/or alkenyl anhydride to be added per the amount of polymer, and based on the total molar number of the CC bonds contained in the polymer, is generally 1:0.1-10, preferably 1:0.5-5, more preferably 1:0.9-1.1.

[0143] In an embodiment according to the present invention, the polymer containing CC bond(s) and the alkenyl acid and/or the alkenyl anhydride are reacted at a reaction temperature of 100-350 C., preferably 200-300 C.

[0144] In an embodiment according to the present invention, the polymer containing CC bond(s) and the alkenyl acid and/or the alkenyl anhydride are reacted under a reaction pressure of 0.1-10 MPa, preferably 0.1-5 MPa.

[0145] In an embodiment according to the present invention, the polymer containing CC bond(s) and the alkenyl acid and/or the alkenyl anhydride are reacted for a reaction period of 0.1 h-10 h, preferably 0.5 h-10 h.

[0146] In an embodiment according to the present invention, in the reaction process of the reaction of the polymer containing CC bond(s) and the alkenyl acid and/or the alkenyl anhydride, an inert gas is preferably introduced, more preferably nitrogen is introduced.

[0147] In an embodiment according to the present invention, in the reaction of the polymer containing CC bond(s) and the alkenyl acid and/or the alkenyl anhydride, a solvent may be used, or a solvent may not be used. When a solvent is used, as the solvent, one or more of toluene, petroleum ether and base oil can be used, and petroleum ether is preferably used. In an embodiment according to the present invention, the amount of the solvent may be a conventionally used amount, preferably from 10% to 200% by mass of the polymer containing CC bond(s). In an embodiment according to the present invention, the solvent can be removed after completion of the reaction by methods known to those skilled in the art.

[0148] In an embodiment according to the present invention, upon reacting the reaction product of the polymer containing CC bond(s) and the alkenyl acid and/or alkenyl anhydride with the compound represented by formula (III), by controlling the reaction conditions, a polymer containing a imide group can be formed, and a polymer containing an amide group and a carboxylic acid group can also be formed.

[0149] In an embodiment according to the present invention, upon reacting the reaction product of the polymer containing CC bond(s) and the alkenyl acid and/or alkenyl anhydride with the compound represented by formula (III), by controlling the reaction conditions, an amine-based polymer containing an amino group can be formed.

[0150] In an embodiment according to the present invention, the amine-based polymer can contain an amino group in the structure represented by formula (I). In an embodiment according to the present invention, said amine-based polymer containing an amino group can be further subjected to the quaterisation reaction with a quaternizing agent. The reaction product thus obtained is also included in the scope of protection of the present invention.

[0151] In an embodiment according to the present invention, the quaterisation reaction of said amine-based polymer containing an amino group can be carried out in the reaction conditions well known in the art. In an embodiment according to the present invention, the quaterisation reaction comprises: a step of reacting said amine-based polymer containing an amino group with a quaternizing agent. In an embodiment according to the present invention, the quaternizing agent can be a quaternizing agent well known in the art. In an embodiment according to the present invention, the quaternizing agent is one or more selected from dialkyl sulfate ester, hydrocarbyl-substituted carbonate (preferably alkyl-substituted carbonate) and hydrocarbyl epoxide (preferably alkyl epoxide). As the quaternizing agent of the present invention, for example, one or more of styrene oxide, propylene oxide, ethylene oxide, dimethyl carbonate and diethyl carbonate can be exemplified.

[0152] In an embodiment according to the present invention, the reaction molar ratio of said amine-based polymer containing an amino group to the quaternizing agent in the quaterisation reaction is 1:0.5-5, preferably 1:0.9-1.1. In an embodiment according to the present invention, the reaction temperature of said quaterisation reaction is 50 C.-80 C., preferably 60 C.-70 C. In an embodiment according to the present invention, the reaction pressure of said quaterisation reaction is 0.1-10 MPa, preferably 0.1-5 MPa. In an embodiment according to the present invention, the reaction time of said quaterisation reaction is 1 h-10 h, preferably 3 h-5 h. In an embodiment according to the present invention, an inert gas (preferably nitrogen) is introduced in the quaterisation reaction process.

[0153] In an embodiment according to the present invention, after the completion of the preparation process of the amine-based polymer, the optionally added catalyst and/or solvent can be removed from the finally obtained reaction mixture with the method well known in the art to obtain the amine-based polymer of the present invention.

[Preferable Structure of the Amine-Based Polymer and the Preparation Process Thereof]

[0154] In an embodiment of the present invention, said amine-based polymer comprises a structure represented by the following formula (IV):

##STR00114##

wherein A is each independently selected from H, R.sub.0O.sub.yR.sub.1H, R.sub.0O.sub.yR.sub.1NH.sub.2 and R.sub.0O.sub.yR.sub.1OH; G is selected from OH, H,

##STR00115##

z is an integer of 1-10, preferably an integer of 1-3; x is 0 or 1, in z repeating units, when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 0, x is 0; when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 1, x is 1; the definitions of other groups and symbols in the formula (IV) are the same as described above, and PIB represents polyisobutene.

[0155] In an embodiment of the present invention, the process for preparing an amine-based polymer polymer represented by the above formula (IV) comprises: a step of reacting polyisobutylene succinic anhydride with

##STR00116##

the definitions of each of groups and symbols in

##STR00117##

are the same as described above for formula (IV). Preferably, the molar ratio between the two is 1:0.9-1.1. Preferably, the reaction temperature is 120 C.-180 C. Preferably, the reaction time is 0.5 h-4 h. Preferably, the solvent is petroleum ether or no solvent is used. Preferably, an inert gas (preferably nitrogen) is introduced during the reaction process.

[0156] In an embodiment of the present invention, the amine-based polymer comprises a structure represented by the following formula (V):

##STR00118##

wherein A is each independently selected from H R.sub.0O.sub.yR.sub.1H, R.sub.0O.sub.yR.sub.1NH.sub.2, and R.sub.0O.sub.yR.sub.1OH; z is an integer of 1-10, preferably an integer of 1-3; x is 0 or 1, in z repeating units, when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 0, x is 0; when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 1, x is 1; the definitions of other groups and symbols in the formula (V) are the same as described above, and PIB represents polyisobutene.

[0157] In an embodiment of the present invention, the process for preparing an amine-based polymer polymer represented by the above formula (V) comprises: a step of reacting polyisobutylene succinic anhydride with

##STR00119##

the definitions of each of groups and symbols in

##STR00120##

are the same as described above for formula (V). Preferably, the molar ratio between the two is 1.9-2.1:1. Preferably, the reaction temperature is 120 C.-180 C. Preferably, the reaction time is 0.5 h-4 h. Preferably, the solvent is petroleum ether or no solvent is used. Preferably, an inert gas (preferably nitrogen) is introduced during the reaction process.

[0158] In an embodiment of the present invention, the amine-based polymer comprises a structure represented by the following formula (VI):

##STR00121##

wherein A is each independently selected from H, R.sub.0O.sub.yR.sub.1H, R.sub.0O.sub.yR.sub.1NH.sub.2, and R.sub.0O.sub.yR.sub.1OH; z is an integer of 1-10, preferably an integer of 1-3; x is 0 or 1, in z repeating units, when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 0, x is 0; when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 1, x is 1; the definitions of other groups and symbols in the formula (VI) are the same as described above, and PIB represents polyisobutene.

[0159] In an embodiment of the present invention, the process for preparing an amine-based polymer polymer represented by the above formula (VI) comprises: a step of reacting polyisobutylene succinic anhydride with

##STR00122##

the definitions of each of groups and symbols in

##STR00123##

are the same as described above for formula (VI). Preferably, the molar ratio between the two is 1.9-2.1:1. Preferably, the reaction temperature is 40 C.-70 C. Preferably, the reaction time is 0.5 h-4 h. Preferably, the solvent is petroleum ether or no solvent is used. Preferably, an inert gas (preferably nitrogen) is introduced during the reaction process.

[0160] In an embodiment of the present invention, the amine-based polymer comprises a structure represented by the following formula (VII):

##STR00124##

wherein A is each independently selected from H,

##STR00125##

z is an integer of 1-10, preferably an integer of 1-3; x is 0 or 1, in z repeating units, when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 0, x is 0; when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 1, x is 1; the definitions of other groups and symbols in the formula (VII) are the same as described above, and PIB represents polyisobutene.

[0161] In an embodiment of the present invention, the process for preparing an amine-based polymer represented by the above formula (VII) comprises: a step of reacting polyisobutylene succinic anhydride with

##STR00126##

the definitions of each of groups and symbols in

##STR00127##

are the same as described above for formula (VII). Preferably, the molar ratio of the polyisobutylene succinic anhydride to

##STR00128##

is 1:0.9-1.1. Preferably, the reaction temperature for the reaction of the polyisobutylene succinic anhydride and

##STR00129##

is 40 C.-70 C. Preferably, the reaction time is 0.2 h-1 h. Preferably, the solvent is petroleum ether or no solvent is used. Preferably, an inert gas (preferably nitrogen) is introduced during the reaction process.

[0162] In an embodiment of the present invention, the amine-based polymer comprises a structure represented by the following formula (VIII):

##STR00130##

##STR00131##

wherein A is each independently selected from H, z is an integer of 1-10, preferably an integer of 1-3; x is 0 or 1, in z repeating units, when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 0, x is 0; when x in the terminal repeating unit attached to the nitrogen atom of the imide group via R.sub.0O.sub.yR.sub.1.sub.x is 1, x is 1; the definitions of other groups and symbols in the formula (VIII) are the same as described above, and PIB represents polyisobutene.

[0163] In an embodiment of the present invention, the process for preparing an amine-based polymer represented by the above formula (VIII) comprises:

[0164] a step of reacting polyisobutylene succinic anhydride with

##STR00132##

[0165] and a step of subjecting the reaction product and a quaternizing agent to a quaterisation reaction; said quaternizing agent has a structure of

##STR00133##

[0166] the definitions of each of groups and symbols therein are the same as described above for formula (VIII). Preferably, the molar ratio of polyisobutylene succinic anhydride:

##STR00134##

[0167] the quaternizing agent is 1:0.9-1.1:0.9-1.1. Preferably, the reaction temperature of the reaction of the polyisobutylene succinic anhydride and

##STR00135##

is 40 C.-70 C. Preferably, the amidation reaction time is 0.2 h-1 h. Preferably, in the amidation reaction, the solvent is petroleum ether or no solvent is used. Preferably, an inert gas (preferably nitrogen) is introduced during the amidation reaction process. Preferably, the temperature of the quaterisation reaction is 60 C.-70 C. Preferably, the quaterisation reaction time is 3 h-7 h.

[0168] In the amine-based polymers of the above formula (IV) to formula (VIII), the PIB moiety may be replaced with a polymer of C.sub.2-C.sub.10 alpha-olefin, and more specifically, the PIB moiety may be replaced with one or more selected from polyethylene, polypropylene, polybutylene, polypentene, polyhexylene, polyoctylene, polynonylene and polydecylene. Correspondingly, in the process for preparing the amine-based polymers of the above formula (IV) to formula (VIII), the PIB moiety may be replaced with a polymer of C.sub.2-C.sub.10 alpha-olefin, and more specifically, the PIB moiety may be replaced with one or more selected from polyethylene, polypropylene, polybutylene, polypentene, polyhexylene, polyoctylene, polynonylene and polydecylene.

[Composition]

[0169] The composition of the present invention comprises the amine-based polymer of the present invention, or an amine-based polymer produced by the process of the present invention.

[0170] The composition of the present invention could be in the form of lubricant composition, and also could be in the form of detergent composition.

[Use of the Amine-Based Polymer]

[0171] The amine-based polymer of the present invention, an amine-based polymer produced by the process of the present invention can be used as fuel detergent, which can effectively suppress the formation of deposits and improve the dispersibility of deposits, thereby improving the fuel economy of the internal combustion engine.

EXAMPLES

[0172] Hereinafter, the invention is further illustrated by the examples. These examples illustrate certain embodiments of the invention but are not intended to limit the invention. Those skilled in the art can use the above-mentioned description of the invention to replace the following examples with equally changed equivalent examples.

[0173] The main raw materials used in the examples are as follows:

Polyisobutylene succinic anhydride (PIBSA): Mn=1000 (a product available from Xinxiang Ruifeng New Materials Co., Ltd.)
2-[2-(2-aminoethoxy)ethoxy]ethylamine (EDOBEA) CAS: 929-59-9, Mw=148.2

Triethylenetetramine (TETA) CAS: 112-24-3, Mw=146.23

[0174] Styrene oxide CAS: 96-09-3, Mw=120.15
Propylene oxide CAS: 75-56-9, Mw=58.08

N,N-dimethylpropanediamine (DMAPA) CAS: 109-55-7, Mw=102.18

Example 1

[0175] The polymer of Example 1 was prepared from the reaction of polyisobutylene succinic anhydride with 2-[2-(2-aminoethoxy)ethoxy]ethylamine (EDOBEA).

[0176] To a four-necked flask equipped with a thermometer and a stirrer were added a solution of 7.11 g (0.048 mol) 2-[2-(2-aminoethoxy)ethoxy]ethylamine (EDOBEA) in 10 g petroleum ether at room temperature. 40 g (0.04 mol) polyisobutylene succinic anhydride was dissolved in 20 g petroleum ether (60-90 C.), and slowly added dropwise into the four-necked flask under the protection of nitrogen gas over 90 minutes. The mixture was stirred, and the reaction temperature was maintained at 110 C. After the completion of the dropwise addition, the mixture was warmed up to 180 C. and the reaction was maintained for 4 hours. Solvents were removed from the resulting reaction mixture to produce the amine-based polymer (PIBSI-EDOBEA) of Example 1.

[0177] The illustrative reaction equation of Example 1 is as follows:

##STR00136##

Comparative Example 1

[0178] The polymer of Comparative Example 1 can be a commercially available polyisobutylene succinimide-based PIBSI-TETA, or can be prepared from the reaction of polyisobutylene succinic anhydride with triethylenetetramine (TETA).

[0179] To a four-necked flask equipped with a thermometer and a stirrer were added a solution of 7.02 g (0.048 mol) triethylenetetramine (TETA) in 10 g petroleum ether at room temperature. 40 g (0.04 mol) polyisobutylene succinic anhydride was dissolved in 20 g petroleum ether (60-90 C.), and slowly added dropwise into the four-necked flask under the protection of nitrogen gas over 90 minutes. The mixture was stirred, and the reaction temperature was maintained at 110 C. After the completion of the dropwise addition, the mixture was warmed up to 180 C. and the reaction was maintained for 4 hours. Solvents were removed from the resulting reaction mixture to produce the detergent of Comparative Example 1, i.e. polyisobutylene-succimide based PIBSI-TETA, which had a structure represented by the following formula.

##STR00137##

Example 2

[0180] The polymer of Example 2 was prepared from the reaction of a high active polyisobutylene succinic anhydride, 2-(2-(2-aminoethoxy)ethoxy)-N,N-dimethylethane-1-amine and propylene oxide. Among others, said 2-(2-(2-aminoethoxy)ethoxy)-N,N-dimethylethane-1-amine was prepared from 2-[2-(2-aminoethoxy)ethoxy]ethylamine (EDOBEA) and methanol through the amine methylation reaction known in the art.

[0181] To a four-necked flask equipped with a thermometer and a stirrer were added a solution of 0.048 mol 2-(2-(2-aminoethoxy)ethoxy)-N,N-dimethylethane-1-amine in 10 g petroleum ether under a nitrogen atmosphere. 40 g (0.04 mol) polyisobutylene succinic anhydride was dissolved in 20 g petroleum ether (60-90 C.), and slowly added dropwise into the four-necked flask under the protection of nitrogen gas over 90 minutes. After the completion of the dropwise addition, the mixture was warmed up to 40 C. and stirred for 30 minutes. 2.79 g (0.048 mol) propylene oxide was added to the four-necked flask. The mixture was warmed up to 70 C., and reacted under stirring for 7 hours. Solvents were removed from the resulting reaction mixture to produce the amine-based polymer of Example 2, i.e. propylene oxide-quaternary ammonium salt-amine-based polymer.

[0182] The illustrative reaction equation of Example 2 is as follows:

##STR00138##

Example 3

[0183] To a four-necked flask equipped with a thermometer and a stirrer were added a solution of 0.048 mol 2-(2-(2-aminoethoxy)ethoxy)-N,N-dimethylethane-1-amine in 10 g petroleum ether under a nitrogen atmosphere. 40 g (0.04 mol) polyisobutylene succinic anhydride was dissolved in 20 g petroleum ether (60-90 C.), and slowly added dropwise into the four-necked flask under the protection of nitrogen gas over 90 minutes. After the completion of the dropwise addition, the mixture was warmed up to 40 C. and stirred for 30 minutes. Solvents were removed from the resulting reaction mixture to produce the amine-based polymer of Example 3.

[0184] The illustrative reaction equation of Example 3 is as follows:

##STR00139##

Example 4

[0185] To a four-necked flask equipped with a thermometer and a stirrer were added a solution of 0.048 mol 2-(2-(2-aminoethoxy)ethoxy)-N,N-dimethylethane-1-amine in 10 g petroleum ether under a nitrogen atmosphere. 40 g (0.04 mol) polyisobutylene succinic anhydride was dissolved in 20 g petroleum ether (60-90 C.), and slowly added dropwise into the four-necked flask under the protection of nitrogen gas over 90 minutes. After the completion of the dropwise addition, the mixture was warmed up to 40 C. and stirred for 30 minutes. 5.77 g (0.048 mol) styrene oxide was added to the four-necked flask. The mixture was warmed up to 70 C., and reacted under stirring for 7 hours. Solvents were removed from the resulting reaction mixture to produce the amine-based polymer of Example 4, i.e. styrene oxide-quaternary ammonium salt-amine-based polymer.

[0186] The illustrative reaction equation of Example 4 is as follows:

##STR00140##

Example 5

[0187] To a four-necked flask equipped with a thermometer and a stirrer were added a solution of 0.048 mol N,N-dimethylpropanediamine in 10 g petroleum ether under a nitrogen atmosphere. 40 g (0.04 mol) polyisobutylene succinic anhydride was dissolved in 20 g petroleum ether (60-90 C.), and slowly added dropwise into the four-necked flask under the protection of nitrogen gas over 90 minutes. After the completion of the dropwise addition, the mixture was warmed up to 40 C. and stirred for 30 minutes. 5.77 g (0.048 mol) styrene oxide was added to the four-necked flask. The mixture was warmed up to 70 C., and reacted under stirring for 7 hours. Solvents were removed from the resulting reaction mixture to produce the amine-based polymer of Example 5.

[0188] The illustrative reaction equation of Example 5 is as follows:

##STR00141##

Example 6

[0189] To a four-necked flask equipped with a thermometer and a stirrer were added a solution of 0.048 mol N,N-dimethylpropanediamine in 10 g petroleum ether under a nitrogen atmosphere. 40 g (0.04 mol) polyisobutylene succinic anhydride was dissolved in 20 g petroleum ether (60-90 C.), and slowly added dropwise into the four-necked flask under the protection of nitrogen gas over 90 minutes. After the completion of the dropwise addition, the mixture was warmed up to 40 C. and stirred for 30 minutes. 2.79 g (0.048 mol) propylene oxide was added to the four-necked flask. The mixture was warmed up to 70 C., and reacted under stirring for 7 hours. Solvents were removed from the resulting reaction mixture to produce the amine-based polymer of Example 6.

[0190] The illustrative reaction equation of Example 6 is as follows:

##STR00142##

Detergency Simulation Experiment

[0191] The detergency performance of the polymers of the examples and the comparative example was evaluated by the L-3 type automobile diesel detergency simulation evaluation test machine of Lanzhou Weike Petrochemical Instrument Co., Ltd. The results were in good correlation with the diesel engine XUD-9 bench test.

[0192] The diesel compositions having a polymer content of 100 ppm were prepared by dissolving the polymers of the examples and the comparative example in diesel respectively. These diesel compositions were fed to the deposit collecting plate continuously and to-and-fro at a flow rate of 1.54 ml/min, and the deposit collecting plate temperature was 285 C. The deposit collecting plates were processed and weighed after the experiment. The smaller the weight gain of the deposit collecting plate was, the better the performance of the diesel detergent to suppress the formation of diesel deposits was. The weight gain data of the deposit collecting plate were shown in Table 1.

TABLE-US-00001 TABLE 1 Weight gain of the Detergency evaluation result deposit collecting plate/mg Comparative Example (blank) 11.5 Example 1 8.42 Comparative Example 1 10.0 Example 2 6.41 Example 3 8.72 Example 4 6.85 Example 5 8.43 Example 6 7.87

[0193] From the above results, it was understood that the amine-based polymer of the present invention could more effectively reduce the formation of diesel deposits than the conventional polyisobutylene succinimide detergent. In particular, the amino-based polymer having an ether structural unit exhibited more excellent detergency performance.

Demulsification Experiment

[0194] The polymers of the examples and the comparative example were dissolved in diesel to prepare diesel compositions having a polymer content of 500 ppm. The demulsification properties of the amine-based polymers of the examples and the comparative example were evaluated by the method of Appendix B of GB/T 32859-2016 Diesel Detergent, and the results were shown in Table 2.

TABLE-US-00002 TABLE 2 The amount of water Demulsification evaluation result separated in 15 minutes/mL Comparative Example (blank) 20 Example 1 15 Comparative Example 1 12 Example 2 19 Example 3 14 Example 4 18 Example 5 16 Example 6 17

[0195] From the above results, it was understood that the amine-based polymer of the present invention had a better demulsification performance than the existing polyisobutylene succinimide diesel detergent.

INDUSTRIAL APPLICABILITY

[0196] The amine-based polymer of the present invention is useful as fuel detergent, and exhibits excellent demulsification performance and is excellent in dispersibility for fuel deposits, thereby exhibiting excellent detergency performance.