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

Autor:	I. Alexandrova, G. Iordanov
Rok vydání:	1996
Předmět:	Polymers and Plastics Organic Chemistry food and beverages Chemical modification Divinylbenzene Polyelectrolyte Hydrolysis Polyvinyl chloride chemistry.chemical_compound Acetic acid Membrane chemistry Polymer chemistry Materials Chemistry Acid hydrolysis
Zdroj:	Journal of Polymer Science Part A: Polymer Chemistry. 34:2285-2288
ISSN:	1099-0518 0887-624X
DOI:	10.1002/(sici)1099-0518(19960915)34:12<2285::aid-pola1>3.0.co;2-w
Popis:	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.
Databáze:	OpenAIRE
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