Journal of Polymer Science Part A: Polymer Chemistry, Vol.34, No.12, 2285-2288, 1996
Preparation and Properties of Weak Acid Ion-Exchange Membranes Based on Poly(Vinylchloride)Poly(Methylmethacrylate-Co-Divinylbenzene) System
Weak acid ion-exchange membranes were obtained on the basis of PVC/poly(MMA-co-DVB) interpolymer-type systems. Carboxylic groups were introduced by acid hydrolysis of ester groups in poly(MMA-co-DVB) copolymer. It was found that suitable conditions for preparation of carboxylic membranes were : temperature of 353 K, 3 h reaction time, and acetic acid used. The best ion-exchange and electrochemical properties had membrane prepared from hydrolyzed PVC/poly(MMA-co-DVB) system with 5 wt % DVB.