Production process of arylene thioether copolymer

Details Production process of arylene thioether copolymer Production process of arylene thioether copolymer

C - Chemistry, Metallurgy

08

G

402/345

C08G 75/10 (2006.01) C08G 75/02 (2006.01) C08G 75/20 (2006.01)

Patent

CA 2040970

Disclosed herein is a process for the production of an arylene thioether copolymer (C), wherein an alkali metal sulfide is caused to act on a poly(arylene thioether) (A) having predominant recurring units of the formula [I]: Image [I] wherein R denotes an alkyl group having 1-6 carbon atoms, and 1 stands for 0 or an integer of 1-4, in a water- containing polar organic solvent so as to depolymerize the poly(arylene thioether) (A), thereby preparing a prepolymer (B) having an alkali thiolate group on at least one terminal thereof and the resultant prepolymer (B) is then subjected to a polymerization reaction with at least one dihalogen-substituted aromatic compound.

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