The present application relates to a method of performing living cationic polymerization of monomers by supermolecular anion-binding catalysis. It uses various simple Bronsted acids or adducts thereof with a monomer as the cationic initiator, and various hydrogen bond donors as the catalyst for binding and dissociating counter anions dynamically, to living and controlled polymerize one or more cationically polymerizable monomers to form a homopolymer or a copolymer. In the present application, the hydrogen-bond donor can exert non-covalent anion-binding interactions to dynamically and reversibly activate dormant covalent bond under mild conditions, in turn to precisely control the equilibrium between dormant covalent precursors and active cationic species, thereby achieving the precise control of the polymer's molecular weight, distribution and end group structure, and solving the environment-unfriendly relevant problems in traditional metal-based Lewis acid catalysis, which include extreme low polymerization temperature, restrict anhydrous requirement of the reaction, strict purification requirement of the monomer and catalysis-initiating system, metal residue in polymer or the like.

[Problem] Provided is an oxyethylene chain-containing polymer having excellent biocompatibility and still having excellent reactivity.

[Solution] An oxyethylene chain-containing polymer according to the present invention is represented by the following general formula (1):

##STR00001##

(wherein, in the general formula (1), R.sup.1 is (CH.sub.2).sub.pSH, (CH.sub.2).sub.pN.sub.3, (CH.sub.2).sub.pNH.sub.2, or (CH.sub.2).sub.pCOOH, and p is an integer of 1 to 5; R.sup.2 to R.sup.4 are each independently hydrogen or a C.sub.1-10 alkyl group; R.sup.5 is a C.sub.1-10 alkyl group; R.sup.6 is hydrogen or a C.sub.1-5 alkyl group; R.sup.7 is a C.sub.1-10 alkyl group; n is an integer of 5 to 1000; m is an integer of 1 to 10; and q is an integer of 0 to 5).

[Problem] Provided is an oxyethylene chain-containing polymer having excellent biocompatibility and still having excellent reactivity.

[Solution] An oxyethylene chain-containing polymer according to the present invention is represented by the following general formula (1):

##STR00001##

(wherein, in the general formula (1), R.sup.1 is (CH.sub.2).sub.pSH, (CH.sub.2).sub.pN.sub.3, (CH.sub.2).sub.pNH.sub.2, or (CH.sub.2).sub.pCOOH, and p is an integer of 1 to 5; R.sup.2 to R.sup.4 are each independently hydrogen or a C.sub.1-10 alkyl group; R.sup.5 is a C.sub.1-10 alkyl group; R.sup.6 is hydrogen or a C.sub.1-5 alkyl group; R.sup.7 is a C.sub.1-10 alkyl group; n is an integer of 5 to 1000; m is an integer of 1 to 10; and q is an integer of 0 to 5).

The present invention relates to a process for producing a solid Ziegler-Natta catalyst component in the form of solid particles having a median particle size (D50.sub.vol) of 5 to 500 m and the process comprising steps I. providing a solution of a Group 2 metal dihalide (IUPAC, Nomenclature of Inorganic Chemistry, 2005) by dissolving a solid Group 2 metal dihalide in an alcohol mixture comprising at least a monohydric alcohol (A1) of formula ROM, where R is selected from a hydrocarbyl group of 3 to 16 C atoms and an alcohol (A2) comprising in addition to the hydroxyl group another oxygen containing functional group not being a hydroxyl group, contacting the solution of the Group 2 metal dihalide of step I with a compound in a liquid form of a transition metal of Group 4 to 10, or of a lanthanide or actinide, preferably a transition metal of Group 4 to 6 of Periodic Table (IUPAC, Nomenclature of Inorganic Chemistry, 2005), and III. recovering the solid catalyst component, wherein the amount of Group 2 metal originating from Group 2 metal dihalide constitutes 100% of the whole amount of the Group 2 metal used in the process for producing the solid Ziegler-Natta catalyst component.

The present invention relates to a process for producing a solid Ziegler-Natta catalyst component in the form of solid particles having a median particle size (D50.sub.vol) of 5 to 500 m and the process comprising steps I. providing a solution of a Group 2 metal dihalide (IUPAC, Nomenclature of Inorganic Chemistry, 2005) by dissolving a solid Group 2 metal dihalide in an alcohol mixture comprising at least a monohydric alcohol (A1) of formula ROM, where R is selected from a hydrocarbyl group of 3 to 16 C atoms and an alcohol (A2) comprising in addition to the hydroxyl group another oxygen containing functional group not being a hydroxyl group, contacting the solution of the Group 2 metal dihalide of step I with a compound in a liquid form of a transition metal of Group 4 to 10, or of a lanthanide or actinide, preferably a transition metal of Group 4 to 6 of Periodic Table (IUPAC, Nomenclature of Inorganic Chemistry, 2005), and III. recovering the solid catalyst component, wherein the amount of Group 2 metal originating from Group 2 metal dihalide constitutes 100% of the whole amount of the Group 2 metal used in the process for producing the solid Ziegler-Natta catalyst component.

A thickening composition includes a polymer (A) comprising a repeating unit (A1) represented by the formula (a1) and a solvent (B), all of which are defined herein.

A thickening composition includes a polymer (A) comprising a repeating unit (A1) represented by the formula (a1) and a solvent (B), all of which are defined herein.

Provided are a fluorine-containing copolymer composition containing a fluorine-containing copolymer and a fluorine-containing compound having two maleimide groups, and a cross-linked product thereof, and a compound.

Provided are a fluorine-containing copolymer composition containing a fluorine-containing copolymer and a fluorine-containing compound having two maleimide groups, and a cross-linked product thereof, and a compound.