CHARGE-MOSAIC MEMBRANE FROM GAMMA-IRRADIATED POLY(STYRENE-BUTADIENE-4-VINYLPYRIDINE) TRIBLOCK COPOLYMER

被引:14
作者
LIANG, L
YING, SK
机构
[1] Institute of Materials Science and Engineering, East China University of Chemical Technology, Shanghi, P. O. Box 289
关键词
BLOCK COPOLYMER; CHARGE-MOSAIC MEMBRANE; IRRADIATION; POLY(STYRENE-BUTADIENE-4-VINYLPYRIDINE);
D O I
10.1002/polb.1993.090310902
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Poly(styrene-butadiene-4-vinylpyridine) triblock copolymers were prepared from styrene (S), butadiene (B), and 4-vinylpyridine (P) by sequential anionic polymerization with n-butyllithium as initiator and benzene as solvent. The triblock copolymer was characterizated by gel-permeation chromatography (GPC), transmission electron microscopy (TEM), and viscoelastic spectrometry. Films of the triblock copolymer cast from solution in mixtures of chloroform and n-butyraldehyde were subjected to gamma-ray irradiation to form cross-linked networks. Cationic and anionic groups were introduced by sulfonation and quaternization to obtain charge-mosaic membranes. The resulting membrane had substantial cation-exchange and anion-exchange capacities. The membranes were very permeable to electrolyte (J(KCl) = 2.10 X 10(-8) mol/cm2 s). (C) 1993 John Wiley & Sons, Inc.
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页码:1075 / 1081
页数:7
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