STUDIES ON THE PHASE-TRANSFER CATALYZED POLYCONDENSATION .3. CATALYTIC EFFECT OF STYRENE VINYLBENZYLTRIALKYLAMMONIUM CHLORIDE-COPOLYMER ON PREPARATION OF POLYETHER FROM ALPHA,ALPHA'-DICHLORI-PARA-XYLENE AND 2,2-BIS(4-HYDROXYPHENYL) PROPANE

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 alpha , alpha prime -dichloro-p-xylene with 2,2, -bis(4-hydroxyphenyl)propane(BPA) were carried out in THF- of benzene-DMSO/50% aqueous NaOH solution system with CPC at 60 degree C. When a styrene-vinylbenzyltriethylammonium chloride copolymer(I) was used as a catalyst, inherent viscosity of the resulting polymer reached 0. 74 dl g** minus **1 in benzene-DMSO(3:1)/50% aqueous solution for 30 min. Catalytic effect of I was also compared with polystyrene and benzyltriethylammonium chloride.