METHOD FOR EVALUATING MONOMERS HAVING EFFECT ON COPOLYMER CHARACTERISTICS, AND SYSTEM USING SAME

Abstract

This invention relates to a method of evaluating monomers having an effect on copolymer characteristics and a system using the same, and particularly to a novel method of evaluating the magnitude of the effect of monomers on copolymer characteristics, which cannot be evaluated using existing methods. The method of evaluating monomers having an effect on copolymer characteristics and the system using the same are innovative because the extent of changes in copolymer characteristics can be predicted at the monomer level by quantitatively evaluating the effect of the monomers on the copolymer characteristics, taking into consideration the kind or linkage type of monomers.

Claims

1. A method of evaluating monomers having an effect on characteristics of a copolymer comprising two or more monomers, comprising steps of: a) selecting monomers M.sub.k for a copolymer and selecting N.sub.1 monomers M.sub.i able to form the copolymer together with the M.sub.k, wherein the N.sub.1 monomers M.sub.i are represented as M.sub.i1, M.sub.i2, and M.sub.iN1, N.sub.1 is a natural number of 2 or more; b) calculating α(M.sub.k), β(M.sub.k), α(M.sub.i) and β(M.sub.i), which are monomer displacement values for the monomers M.sub.k and M.sub.i using Equations 1 to 3 below,
α(M.sub.i)=A.sub.1×Funct(EC(M.sub.i))/η(M.sub.i)
β(M.sub.i)=A.sub.2×Funct(AS(M.sub.i))/η(M.sub.i) [Equation 1]
α(M.sub.k)=A.sub.1×Funct(EC(M.sub.k))/η(M.sub.k)
β(M.sub.k)=A.sub.2×Funct(AS(M.sub.k))/η(M.sub.k) [Equation 2]
Funct(x)=a1*Exp(a2*x) or Funct(x)=a3 log(1+a4*x).sup.a5 [Equation 3] in Equations 1 to 3, A.sub.1 and A.sub.2 are control constants and are real numbers other than zero, Funct(x) represents a function for a variable x, a1, a2, a3, a4, and a5 are real numbers and are control constants that vary depending on a type of Funct(x), η(M.sub.i) is a value calculated for the monomers M.sub.i and is a Topological Polar Surface Area, a McGowan Volume, an Approximate Surface Area, or an Octanol/Water Partition Coefficient, EC(M.sub.i) represents a Molecular Eccentricity for the monomers M.sub.i, and AS(M.sub.i) represents a Molecular Asphericity for the monomers M.sub.i; and c) calculating characteristic displacement values λ(M.sub.k;M.sub.i) of the monomers M.sub.i relative to the monomers M.sub.k using Equation 4 below and determining a monomer M.sub.i having a relatively high characteristic displacement value to be a monomer having a significant effect on copolymer characteristics, $\begin{matrix} λ (M_{k}; M_{i}) = .Math. 1 - A_{3} .Math. x .Math. \frac{α (M_{k})}{α (M_{i})} - (1 - A_{3}) .Math. x .Math. \frac{β (M_{k})}{β (M_{i})} .Math. & [Equation .Math. .Math. 4] \end{matrix}$ in Equation 4, A.sub.3 is a control constant and is a real number from 0 to 1.

2. The method of claim 1, wherein the number of monomers M.sub.k is N.sub.2, N.sub.2 is an integer of 2 or more, and effects of the N.sub.1 monomers M.sub.i on each of the N.sub.2 monomers M.sub.k are evaluated.

3. The method of claim 1, wherein the copolymer characteristics include at least one selected from the group consisting of bonding characteristics, electrical characteristics, and adhesion characteristics.

4. The method of claim 1, wherein, in Equations 1 and 2 of step b), A.sub.1 and A.sub.2 are control constants and are real numbers greater than zero.

5. The method of claim 1, wherein, in Equations 1 and 2 of step b), η(M.sub.i) and η(M.sub.k) are calculated using an ADRIANA.Code program.

6. The method of claim 1, wherein, in Equations 1 and 2 of step b), EC(M.sub.i), AS(M.sub.i), EC(M.sub.k) and AS(M.sub.k) are calculated using an ADRIANA.Code program.

7. The method of claim 1, wherein, in Equation 4 of step c), A.sub.3 is a real number from 0.3 to 0.8.

8. The method of claim 1, wherein the values λ(M.sub.k;M.sub.i) calculated in step c) are real numbers greater than zero.

9. The method of claim 8, wherein, when the λ(M.sub.k;M.sub.i) calculated in step c) is greater than zero, an effect of the monomer M.sub.i on copolymer characteristics is high upon forming the copolymer by linking the monomer M.sub.i to the monomer M.sub.k, and when the λ(M.sub.k;M.sub.i) is so small as to be close to zero, the effect of the monomer M.sub.i on copolymer characteristics is low upon forming the copolymer by linking the monomer M.sub.i to the monomer M.sub.k.

10. A system for evaluating monomers having an effect on characteristics of a copolymer comprising two or more monomers, comprising: a configuration module for selecting monomers M.sub.k for a copolymer and selecting N.sub.1 monomers M.sub.i able to form the copolymer together with the M.sub.k, wherein the N.sub.1 monomers M.sub.i are represented as M.sub.i1, M.sub.i2, . . . , and M.sub.iN1, N.sub.1 is a natural number of 2 or more; a calculation module for calculating α(M.sub.k), β(M.sub.k), α(M.sub.i) and β(M.sub.i), which are monomer displacement values for the monomers M.sub.k and M.sub.i using Equations 1 to 3 below,
α(M.sub.i)=A.sub.1×Funct(EC(M.sub.i))/η(M.sub.i)
β(M.sub.i)=A.sub.2×Funct(AS(M.sub.i))/η(M.sub.i) [Equation 1]
α(M.sub.k)=A.sub.1×Funct(EC(M.sub.k))/η(M.sub.k)
β(M.sub.k)=A.sub.2×Funct(AS(M.sub.k))/η(M.sub.k) [Equation 2]
Funct(x)=a1*Exp(a2*x) or Funct(x)=a3 log(1+a4*x).sup.a5 [Equation 3] in Equations 1 to 3, A.sub.1 and A.sub.2 are control constants and are real numbers other than zero, Funct(x) represents a function for a variable x, a1, a2, a3, a4, and a5 are real numbers and are control constants that vary depending on a type of Funct(x), η(M.sub.i) is a value calculated for the monomers M.sub.i and is a Topological Polar Surface Area, a McGowan Volume, an Approximate Surface Area, or an Octanol/Water Partition Coefficient, EC(M.sub.i) represents a Molecular Eccentricity for the monomers M.sub.i, and AS(M.sub.i) represents a Molecular Asphericity for the monomers M.sub.i; and an evaluation module for calculating characteristic displacement values λ(M.sub.k;M.sub.i) of the monomers M.sub.i relative to the monomers M.sub.k using Equation 4 below and determining a monomer M.sub.i having a relatively high characteristic displacement value to be a monomer having a significant effect on copolymer characteristics, $\begin{matrix} λ (M_{k}; M_{i}) = .Math. 1 - A_{3} .Math. x .Math. \frac{α (M_{k})}{α (M_{i})} - (1 - A_{3}) .Math. x .Math. \frac{β (M_{k})}{β (M_{i})} .Math. & [Equation .Math. .Math. 4] \end{matrix}$ in Equation 4, A.sub.3 is a control constant and is a real number from 0 to 1.

11. The system of claim 10, wherein the number of monomers M.sub.k is N.sub.2, N.sub.2 is an integer of 2 or more, and effects of the N.sub.1 monomers M.sub.i on each of the N.sub.2 monomers M.sub.k are evaluated.

12. The system of claim 10, wherein the copolymer characteristics include at least one selected from the group consisting of bonding characteristics, electrical characteristics, and adhesion characteristics.

13. The system of claim 10, wherein, in Equations 1 and 2 of the calculation module, A.sub.1 and A.sub.2 are control constants and are real numbers greater than zero.

14. The system of claim 10, wherein, in Equations 1 and 2 of the calculation module, η(M.sub.i) and η(M.sub.k) are calculated using an ADRIANA.Code program.

15. The system of claim 10, wherein, in Equations 1 and 2 of the calculation module, EC(M.sub.i), AS(M.sub.i), EC(M.sub.k) and AS(M.sub.k) are calculated using an ADRIANA.Code program.

16. The system of claim 10, wherein, in Equation 4 of the evaluation module, A.sub.3 is a real number from 0.3 to 0.8.

17. The system of claim 10, wherein the values λ(M.sub.k;M.sub.i) calculated in the evaluation module are real numbers greater than zero.

18. The system of claim 17, wherein, when the λ(M.sub.k;M.sub.i) calculated in the evaluation module is greater than zero, an effect of the monomer M.sub.i on copolymer characteristics is high upon forming the copolymer by linking the monomer M.sub.i to the monomer M.sub.k, and when the λ(M.sub.k;M.sub.i) is so small as to be close to zero, the effect of the monomer M.sub.i on copolymer characteristics is low upon forming the copolymer by linking the monomer M.sub.i to the monomer M.sub.k.

Description

BEST MODE

[0018] Hereinafter, a detailed description will be given of the present invention.

[0019] For reference, constants defined in the following Equations of the present invention are values that are determined within a range in which the method of the present invention works well.

[0020] The present invention addresses a method of evaluating monomers having an effect on the characteristics of a copolymer comprising two or more monomers, comprising the steps of:

[0021] a) selecting monomers M.sub.k for a copolymer and selecting N.sub.1 monomers M.sub.i able to form the copolymer together with M.sub.k, wherein the N.sub.1 monomers M.sub.i are represented as M.sub.i1, M.sub.i2, . . . , and M.sub.iN1, N.sub.1 is a natural number of 2 or more;

[0022] b) calculating α(M.sub.k), β(M.sub.k), α(M.sub.i) and β(M.sub.i), which are monomer displacement values for the monomers M.sub.k and M.sub.i using Equations 1 to 3 below,

α(M.sub.i)=A.sub.1×Funct(EC(M.sub.i))/η(M.sub.i)

β(M.sub.i)=A.sub.2×Funct(AS(M.sub.i))/η(M.sub.i) [Equation 1]

α(M.sub.k)=A.sub.1×Funct(EC(M.sub.k))/η(M.sub.k)

β(M.sub.k)=A.sub.2×Funct(AS(M.sub.k))/η(M.sub.k)[Equation 3]

Funct(x)=a1*Exp(a2*x) or Funct(x)=a3 log(1+a4*x).sup.a5 [Equation 3]

[0023] in Equations 1 to 3, A.sub.1 and A.sub.2 are control constants and are real numbers other than zero, Funct(x) represents a function for the variable x, a1, a2, a3, a4, and a5 are real numbers and are control constants that vary depending on the type of Funct(x), η(M.sub.i) is a value calculated for the monomers M.sub.i and is a Topological Polar Surface Area, a McGowan Volume, an Approximate Surface Area, or an Octanol/Water Partition Coefficient, EC(M.sub.i) represents a Molecular Eccentricity for the monomers M and AS(M.sub.i) represents a Molecular Asphericity for the monomers M; and

[0024] c) calculating characteristic displacement values λ(M.sub.k;M.sub.i) of the monomers M.sub.i relative to the monomers M.sub.k using Equation 4 below and determining the monomer M.sub.i having a relatively high characteristic displacement value to be a monomer having a significant effect on the copolymer characteristics,

[00003] $\begin{matrix} λ (M_{k}; M_{i}) = .Math. 1 - A_{3} .Math. x .Math. \frac{α (M_{k})}{α (M_{i})} - (1 - A_{3}) .Math. x .Math. \frac{β (M_{k})}{β (M_{i})} .Math. & [Equation .Math. .Math. 4] \end{matrix}$

[0025] in Equation 4, A.sub.3 is a control constant and is a real number from 0 to 1, and preferably from 0.3 to 0.8.

[0026] Specifically, step a) comprises forming a set of monomer linkages for a copolymer by selecting N.sub.1 monomers, the effect on copolymer characteristics of which is to be evaluated, and selecting N.sub.2 monomers that may be polymerized into a copolymer through linking with any one monomer of the N.sub.1 monomers, in which the number of monomers M.sub.k is N.sub.2, and the effects of the N.sub.1 monomers M.sub.i on each of the N.sub.2 monomers M.sub.k are evaluated. Here, N.sub.2 is preferably a natural number of 2 or more.

[0027] In the first step a), the copolymer characteristics may include at least one selected from the group consisting of, for example, bonding characteristics, electrical characteristics, and adhesion characteristics, and the N.sub.1 monomers, the effect on copolymer characteristics of which is to be evaluated, are selected, and the N.sub.2 counterpart monomers, which are polymerizable with the above monomers to give a copolymer, may be selected. According to an embodiment of the present invention, in order to evaluate the effect of monomers on copolymer characteristics, copolymers configured such that monomers (B and C) where N.sub.1=2 are linked with a monomer A (N.sub.2=1) may be taken into account.

[0028] Examples of the linkage type of monomers for forming a copolymer are as follows.

[0029] (1)—[-B-A-].sub.n-, a copolymer having a linkage of monomers A and B as a repeating unit

[0030] (2)—[-C-A-].sub.n-, a copolymer having a linkage of monomers A and C as a repeating unit

[0031] The magnitude of the effect of monomers on characteristics of the copolymer configured such that the monomer B or monomer C is linked to the monomer A may be evaluated through the calculation in step b).

[0032] In the second step b), characteristic values of the copolymer configured to include, as a repeating unit, a linkage of monomers selected from among N.sub.1*N.sub.2 monomers in the set of monomer linkages formed in step a) are calculated. Using Equations 1 to 3 for the monomers M.sub.k and M.sub.i, the monomer displacement values α(M.sub.k), β(M.sub.k), α(M.sub.i) and β(M.sub.i) may be calculated.

[0033] In Equations 1 and 2 of step b), A.sub.1 and A.sub.2 are control constants and are real numbers greater than zero. Also, in Equations 1 and 2, η(M.sub.i) and η(M.sub.k) may be calculated using the ADRIANA.Code program developed by Molecular Network GmbH Computerchemie. Also, in Equations 1 and 2 of step b), EC(M.sub.i), AS(M.sub.i), EC(M.sub.k) and AS(M.sub.k) may be calculated using the ADRIANA.Code program developed by Molecular Network GmbH Computerchemie.

[0034] In the third step c), the magnitudes of the characteristic displacement values λ(M.sub.k;M.sub.i) of M.sub.i relative to M.sub.k calculated in step b) are compared, and thus the relative characteristic values of the monomers are evaluated. The characteristic displacement values λ(M.sub.k;M.sub.i) of the monomers M.sub.i relative to each of the monomers M.sub.k are calculated using Equation 4, and thus a monomer M.sub.i having a relatively high characteristic displacement value may be determined to be a monomer having a significant effect on copolymer characteristics.

[0035] The values λ(M.sub.k;M.sub.i) calculated in step c) are real numbers greater than zero. The case where X(M.sub.k;M.sub.i) is greater than zero indicates that the effect of the monomer M.sub.i on copolymer characteristics is significant when the copolymer is formed by linking the monomer M.sub.i to the monomer M.sub.k. On the other hand, the case where X(M.sub.k;M.sub.i) is so small as to be close to zero indicates that the effect of the monomer M.sub.i on copolymer characteristics is relatively low when the copolymer is formed by linking the monomer M.sub.i to the monomer M.sub.k.

[0036] In addition, the present invention addresses a system for evaluating monomers having an effect on copolymer characteristics using the aforementioned method of evaluating monomers having an effect on copolymer characteristics.

[0037] The system for evaluating monomers having an effect on characteristics of a copolymer comprising two or more monomers includes:

[0038] a configuration module for selecting monomers M.sub.k for a copolymer and selecting N.sub.1 monomers M.sub.i able to form the copolymer together with M.sub.k, wherein the N.sub.1 monomers M.sub.i are represented as M.sub.i1, M.sub.i2, . . . , and M.sub.iN1, N.sub.1 is a natural number of 2 or more;

[0039] a calculation module for calculating α(M.sub.k), β(M.sub.k), α(M.sub.i) and β(M.sub.i), which are monomer displacement values for the monomers M.sub.k and M.sub.i using Equations 1 to 3 below,

α(M.sub.i)=A.sub.1×Funct(EC(M.sub.i))/η(M.sub.i)

β(M.sub.i)=A.sub.2×Funct(AS(M.sub.i))/η(M.sub.i) [Equation 1]

α(M.sub.k)=A.sub.1×Funct(EC(M.sub.k))/η(M.sub.k)

β(M.sub.k)=A.sub.2×Funct(AS(M.sub.k))/η(M.sub.k)[Equation 3]

Funct(x)=a1*Exp(a2*x) or Funct(x)=a3 log(1+a4*x).sup.a5 [Equation 3]

[0040] in Equations 1 to 3, A.sub.1 and A.sub.2 are control constants and are real numbers other than zero, Funct(x) represents a function for the variable x, a1, a2, a3, a4, and a5 are real numbers and are control constants that vary depending on the type of Funct(x), η(M.sub.i) is a value calculated for the monomers M.sub.i and is a Topological Polar Surface Area, a McGowan Volume, an Approximate Surface Area, or an Octanol/Water Partition Coefficient, EC(M.sub.i) represents a Molecular Eccentricity for the monomers M and AS(M.sub.i) represents a Molecular Asphericity for the monomers M; and

[0041] an evaluation module for calculating characteristic displacement values λ(M.sub.k;M.sub.i) of the monomers M.sub.i relative to the monomers M.sub.k using Equation 4 below and determining the monomer M.sub.i having a relatively high characteristic displacement value to be a monomer having a significant effect on the copolymer characteristics,

[00004] $\begin{matrix} λ (M_{k}; M_{i}) = .Math. 1 - A_{3} .Math. x .Math. \frac{α (M_{k})}{α (M_{i})} - (1 - A_{3}) .Math. x .Math. \frac{β (M_{k})}{β (M_{i})} .Math. & [Equation .Math. .Math. 4] \end{matrix}$

[0042] in Equation 4, A.sub.3 is a control constant and is a real number from 0 to 1, and preferably from 0.3 to 0.8.

[0043] Specifically, in the configuration module as the first module, monomers M.sub.k for a copolymer are selected, and N.sub.1 monomers M.sub.i able to form the copolymer together with M.sub.k are selected. Here, the N.sub.1 monomers M.sub.i are represented as M.sub.i1, M.sub.i2, . . . , and M.sub.iN1, and the number of monomers M.sub.k is N.sub.2 and the effects of the N.sub.1 monomers M.sub.i on each of the N.sub.2 monomers M.sub.k are evaluated.

[0044] In this case, copolymer characteristics may include at least one selected from the group consisting of, for example, bonding characteristics, electrical characteristics, and adhesion characteristics, the N.sub.1 monomers, the effect on copolymer characteristics of which is to be evaluated, are selected, and the N.sub.2 counterpart monomers, which are polymerizable with the above monomers to give a copolymer, may be designated. According to an embodiment of the present invention, in order to evaluate the effect of monomers on copolymer characteristics, copolymers configured such that monomers (B and C) where N.sub.1=2 are linked with a monomer A (N.sub.2=1) may be taken into consideration.

[0045] Examples of the linkage type of monomers for forming a copolymer are as follows.

[0046] (1)—[-B-A-]-, a copolymer having a linkage of monomers A and B as a repeating unit

[0047] (2)—[-C-A-]-, a copolymer having a linkage of monomers A and C as a repeating unit

[0048] The magnitude of the effect of monomers on characteristics of the copolymer configured such that the monomer B or monomer C is linked to the monomer A may be evaluated through calculation using the calculation module.

[0049] In the calculation module as the second module, characteristic values of the copolymer configured to include, as a repeating unit, a linkage of monomers selected from among N.sub.1*N.sub.2 monomers in the set of monomer linkages formed in the configuration module are calculated. Using Equations 1 to 3, the monomer displacement values α(M.sub.k), β(M.sub.k), α(M.sub.i) and β(M.sub.i) for the monomers M.sub.k and M.sub.i may be calculated.

[0050] In Equations 1 and 2 of the calculation module, A.sub.1 and A.sub.2 are control constants and are real numbers greater than zero. Also, in Equations 1 and 2, η(M.sub.i) and η(M.sub.k) may be calculated using the ADRIANA.Code program developed by Molecular Network GmbH Computerchemie. Also, in Equations 1 and 2 of the calculation module, EC(M.sub.i), AS(M.sub.i), EC(M.sub.k) and AS(M.sub.k) may be calculated using the ADRIANA.Code program developed by Molecular Network GmbH Computerchemie.

[0051] In the evaluation module as the third module, the magnitudes of the characteristic displacement values λ(M.sub.k;M.sub.i) of M.sub.i relative to M.sub.k, calculated in the calculation module, are compared, and thus the relative characteristic values of the monomers are evaluated. The characteristic displacement values λ(M.sub.k;M.sub.i) of the monomers M.sub.i relative to each of the monomers M.sub.k are calculated using Equation 4, and the monomer M.sub.i having a relatively high characteristic displacement value may be determined to be a monomer having a significant effect on copolymer characteristics.

[0052] The values λ(M.sub.k;M.sub.i) calculated in the evaluation module are real numbers greater than zero. The case where X(M.sub.k;M.sub.i) is greater than zero indicates that the effect of the monomer M.sub.i on copolymer characteristics is significant when the copolymer is formed by linking the monomer M.sub.i to the monomer M.sub.k. On the other hand, the case where X(M.sub.k;M.sub.i) is so small as to be close to zero indicates that the effect of the monomer M.sub.i on copolymer characteristics is relatively low when the copolymer is formed by linking the monomer M.sub.i to the monomer M.sub.k.

[0053] As used herein, the term “module” refers to a unit that is responsible for a specific function or operation, and may be embodied by hardware and software, either alone or in combination.

MODE FOR INVENTION

[0054] A better understanding of the present invention may be obtained via the following examples, which are set forth to illustrate, but are not to be construed as limiting the scope of the present invention. The scope of the present invention is given by the claims, and also contains all modifications within the meaning and range equivalent to the claims.

Example

[0055] Step 1. Configuration of Set of Monomer Linkages for Forming Copolymer

[0056] Monomers, M.sub.i1 and M.sub.i2, the effects on copolymer characteristics of which are to be evaluated, are 4,4′-diaminodiphenylmethane (CAS Number: 101-77-9) and 3,3′-diaminobenzophenone (CAS Number: 611-79-0), and a monomer M.sub.k, which is used to form a copolymer with each of the above two (N.sub.1) monomers, is 1,2,4,5-cyclohexane tetracarboxylic dianhydride (CAS Number: 2754-41-8) (N.sub.2=1). The copolymer resulting from the linkage of these monomers is polyimide.

##STR00001##

[0057] CAS Numbers represented in parentheses of the material names are unique numbers assigned to individual materials, that is, CAS Registry Numbers.

[0058] Step 2. Calculation of Characteristic Values of Monomers

[0059] Relative characteristic displacement values λ(M.sub.k;M.sub.i) of the monomers were calculated using two Funct(X) forms by the following [Equation 1], [Equation 2] and [Equation 4]. The constants used are shown in Tables 1 and 2 below. Funct(x) in Table 1 is Funct(x)=a1*Exp(a2*x), a1=1.0, a2=2.5. Funct(x) in Table 2 is Funct(x)=a3*log(1+a4*x).sup.a5, a3=1.0, a4=0.5, a5=2.0.

α(M.sub.l)=A.sub.1×Funct(EC(M.sub.l))/η(M.sub.l) β(M.sub.l)=A.sub.2×Funct(AS(M.sub.l))/η(M.sub.l) [Equation1]

α(M.sub.k)=A.sub.1×Funct(EC(M.sub.k))/η(M.sub.k) β(M.sub.K)=A.sub.2×Funct(AS(M.sub.k))/η(M.sub.k) [Equation 2]

[00005] $\begin{matrix} λ (M_{k}; M_{i}) = .Math. 1 - A_{3} .Math. x .Math. \frac{α (M_{k})}{α (M_{i})} - (1 - A_{3}) .Math. x .Math. \frac{β (M_{k})}{β (M_{i})} .Math. & [Equation .Math. .Math. 4] \end{matrix}$

TABLE-US-00001 TABLE 1 CASE01 A.sub.1 Funct(x) A.sub.2 η(M.sub.i) A.sub.3 1.0 10*Exp(2.5*x) 1.0 Topological Polar Surface Area 0.34 for monomer M.sub.i

TABLE-US-00002 TABLE 2 CASE02 A.sub.1 Funct(x) A.sub.2 η(M.sub.i) A.sub.3 1.0 10*log(1 + 0.5*x).sup.2 1.0 Topological Polar Surface Area 0.34 for monomer M.sub.i

[0060] η(M.sub.i), EC(M.sub.i), and AS(M.sub.i) were calculated using the ADRIANA.Code program made by Molecular Network GmbH Computerchemie. In this case, respective values of EC(M.sub.i1), EC(M.sub.i2), AS(M.sub.i1), AS(M.sub.i2), EC(M.sub.k), AS(M.sub.k), η(M.sub.i2), η(M.sub.i2) and η(M.sub.k) were 0.981, 0.953, 0.318, 0.227, 0.956, 0.233, 69.11, 52.05, and 86.74.

[0061] Step 3. Evaluation of Relative Characteristic Values of Monomers

[0062] The relative characteristic values of the monomers finally calculated in step 2 are shown in Table 3 below.

TABLE-US-00003 TABLE 3 λ(M.sub.k; M.sub.i) λ(M.sub.k; M.sub.i) M.sub.k; M.sub.i linkage [CASE01] [CASE02] M.sub.k: 1,2,4,5-cyclohexane tetracarboxylic 0.4885 0.5832 dianhydride M.sub.i: 4,4′-diaminodiphenylmethane M.sub.k: 1,2,4,5-cyclohexane tetracarboxylic 0.1931 0.1740 dianhydride M.sub.i: 3,3′-diaminobenzophenone

[0063] As is apparent from the results of Table 3, when a monomer combination with 1,2,4,5-cyclohexane tetracarboxylic dianhydride (M.sub.k) is formed to prepare a copolymer, the monomer M.sub.i having a greater effect on copolymer characteristics can be found to be 4,4′-diaminodiphenylmethane (CASE01: 0.4885/CASE02: 0.5832) having a relatively high λ(M.sub.k;M.sub.i) value.

[0064] In this way, when the magnitudes of λ(M.sub.k;M.sub.i) values are compared by evaluating the copolymer characteristics using the monomers, the monomer having a greater effect on copolymer characteristics can be identified. Therefore, the method of the invention is capable of evaluating the magnitude of the effect of monomers on copolymer characteristics, which cannot be evaluated using existing methods, and enables the quantitative evaluation of the effect of monomers on copolymer characteristics in consideration of the kind and linkage type of monomers, whereby the extent of changes in the copolymer characteristics can be accurately predicted at the monomer level.

METHOD FOR EVALUATING MONOMERS HAVING EFFECT ON COPOLYMER CHARACTERISTICS, AND SYSTEM USING SAME

Assignee

Inventors

Cpc classification

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G01N33/442

PHYSICS

Classification Explorer

C08G73/1042

CHEMISTRY; METALLURGY

Classification Explorer

G16C20/30

PHYSICS

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C08G73/1078

CHEMISTRY; METALLURGY

International classification

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G01N33/44

PHYSICS

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G06F19/00

PHYSICS

Abstract

Claims

Description