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Anion exchange membranes prepared from chloromethylstyrene and 2‐methyl‐5‐vinylpyridine
Author(s) -
Kawahara Takeo,
Ihara Hirofumi,
Mizutani Yukio
Publication year - 1987
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1987.070330423
Subject(s) - divinylbenzene , copolymer , membrane , ion exchange , polymer chemistry , materials science , ion , chemistry , organic chemistry , styrene , polymer , biochemistry
Strongly basic anion exchange membranes were prepared by the radical copolymerization of chloromethylstyrene and 2‐methyl‐5‐vinylpyridine. The formation of a three‐dimensional structure and the presence of the quarternary pyridinium group were confirmed by infrared spectrum analysis and its strongly basic anion exchange properties. Their electrochemical properties and morphology were compared with those of the anion exchange membranes prepared from chloromethylstyrene‐divinylbenzene and 2‐methyl‐5‐vinylpyridine‐divinylbenzene. The chloromethylstyrene‐2‐methyl‐5‐vinylpyridine membranes were proved to have larger anion exchange capacity, smaller electric resistance, larger water content, and higher permeability than the chloromethylstyrene‐divinylbenzene and 2‐methyl‐5‐vinylpyridine‐divinylbenzene membranes. Also, the membranes have heterogeneity in the cross‐linking structure.