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Acrylonitrile–maleic anhydride copolymer membranes with different molecular weights
Author(s) -
Pei ZhiChao,
Pei YuXin,
Wang QingRui
Publication year - 2002
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.10733
Subject(s) - acrylonitrile , copolymer , polyvinylpyrrolidone , membrane , maleic anhydride , polymer chemistry , materials science , molecular mass , chemical engineering , chemistry , polymer , composite material , organic chemistry , biochemistry , engineering , enzyme
The structure and performance of acrylonitrile–maleic anhydride copolymer membranes with different molecular weights were investigated. The results showed that the water flux of the membrane decreased gradually with increasing molecular weight of the copolymer; the rejection increased only when there was an obvious increase of molecular weight. The addition of an additive (polyvinylpyrrolidone) largely decreased the water flux and rejection of the membrane when the concentration of the copolymer remained unchanged. The higher the molecular weight, the thicker were the transition layer and the wall of the support pore and the better was the anticompactness of the membrane. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 2521–2527, 2002