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Preparation and properties of weak acid ion-exchange membranes based on poly(vinylchloride)/poly(methylmethacrylate-co-divinylbenzene) system

✍ Scribed by I. Alexandrova; G. Iordanov

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 300 KB
Volume: 34
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(19960915)34:12<2285::aid-pola1>3.0.co;2-w

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✦ Synopsis

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 w t % DVB. 0 1996 John Wiley & Sons, Inc.

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