Process for the preparation of polyarylene sulfide and an...

Details Process for the preparation of polyarylene sulfide and an... Process for the preparation of polyarylene sulfide and an...

C - Chemistry, Metallurgy

08

G

C08G 75/16 (2006.01) B01J 19/00 (2006.01) C08G 75/02 (2006.01)

Patent

CA 2085723

High molecular weight polyarylene sulfide is prepared by reacting an alkali metal sulfide with a dihaloaromatic compound in an organic amide solvent, wherein a gaseous phase part of a reactor is cooled to thereby condense a part of a gaseous phase in the reactor, and the condensed liquid is refluxed to a liquid phase in the reactor. Higher molecular weight is attained by copolymerization with 0.005 to 1.5 mole percent, based on the alkali metal sulfide, of a polyhaloaromatic compound.

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