Production process of arylene thioether copolymer

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

1991-04-18

1994-06-28

Marquis, Melvyn J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From sulfur-containing reactant

525537, C08G 7514, C08F28300

Patent

active

053248147

ABSTRACT:
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]: ##STR1## 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.

REFERENCES:
patent: 3919177 (1975-11-01), Campbell
patent: 4645826 (1987-02-01), Iizuka et al.
patent: 4960555 (1990-10-01), Satake et al.
G. Daccord et al. Ponymer Bulletin 6,477-484 (1982).
W. Heitz Makromol. Chem., Macromol. Symp. 26, 1-8 (1989).

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