Method to produce poly(arylene sulfide/sulfone) polymer

Details Method to produce poly(arylene sulfide/sulfone) polymer Method to produce poly(arylene sulfide/sulfone) polymer

C - Chemistry, Metallurgy

08

G

402/344

C08G 75/14 (2006.01) C08G 75/02 (2006.01) C08G 75/20 (2006.01)

Patent

CA 2021176

32264CA Abstract of the Disclosure A method for producing a poly(arylene sulfide/sulfone) polymer is provided which comprises: contacting reactants comprising a dihalogenated aromatic sulfone, an alkali metal sulfide, a polar organic compound, at least one base, an alkali metal carboxylate, and, optionally water, under suitable conditions to initiate a polymerization reaction; thereafter adding an amount of water while maintaining polymerization conditions; then terminating the reaction; and recovering the polymer. The invention method provides for a polymer product wherein the production of low molecular weight product is minimized and high molecular weight yield is maximized.

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