Catalytic Effect of Styrene-Vinylbenzyltrialkylammonium Chloride-Copolymer on Preparation of Polyether from α, α′-Dichloro-P-xylene and 2, 2-Bis (4-hydroxyphenyl) propane

Abstract

Copolymers of styrene and various vinylbenzyltrialkylammonium chloride (CPC) were prepared by the treatment of a copolymer of styrene and chloromethylstyrene with corresponding trialkylamines. Polycondensations of α, α′-dichloro-p-xylene with 2, 2-bis (4-hydroxyphenyl) propane (BPA) were carried out in THF- or benzene- DMSO/50% aqueous NaOH solution system with CPC at 60°C. When a styrene-vinylbenzyltriethylammonium chloride copolymer (I) was used as a catalyst, inherent viscosity of the resulting polymer reached to 0.74 dlg^-1 in benzene-DMSO (3: 1) /50% aqueous solution for 30 min. Catalytic effect of I was also compared with polystyrene and benzyltriethylammonium chloride.