Process for preparation of polyarylene thioethers having...

Details Process for preparation of polyarylene thioethers having... Process for preparation of polyarylene thioethers having...

C - Chemistry, Metallurgy

08

G

402/344

C08G 75/02 (2006.01)

Patent

CA 1261537

ABSTRACT OF THE DISCLOSURE Polyarylene thioethors having increased melt crystallization temperature are produced by subjecting a polyarylene thioether recovered from a conventional polyconden- sation of dichlorobenzene with sodium sulfide to a treatment with solution of a salt of a strong acid such as HCl, H2SO4 or H3PO4 with a weak base such as ammonia. By the post-poly- condensation treatment, the melt crystallization temperature can be increased. The polyarylene thioethers are used, among others, in injection molding.

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