Application and development of synthetic polymer membranes. VI. Pervaporation of aqueous ethanol solution through quaternized poly[3-(N′,N′-dimethyl) aminopropylacrylamide-co-acrylonitrile] membranes
Application and development of synthetic polymer membranes. VI. Pervaporation of aqueous ethanol solution through quaternized poly[3-(N′,N′-dimethyl) aminopropylacrylamide-co-acrylonitrile] membranes
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季铵化聚[3-(N,N-二甲基)氨基丙基丙烯酰胺-丙烯腈]膜的合成聚合物膜的应用与发展。
DOI：
10.1002/app.1991.070431109
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
W. Eguchi
中科院分区：
文献类型：
--
作者：
M. Yoshikawa;Satoshi Ochiai;M. Tanigaki;W. Eguchi
由季铵化聚[3-(N',N'-二甲基)氨基丙基丙烯酰胺-丙烯腈]聚合物获得的膜显示出通过全蒸发从乙醇水溶液中选择性分离水。对水的分离因子达到15,000以上。膜性能与膜极性具有良好的相关性。研究了水溶胀膜的差示扫描量热熔化吸热曲线，以阐明膜中水的状态。结果表明膜中的水有两种状态：结合态和游离态。显然，膜中结合水的比例越高，水就越优先渗透。
Membranes obtained from polymers, quaternized poly[3-(N′,N′-dimethyl) aminopropylacrylamide-co-acrylonitrile]s, showed selective separation of water from aqueous ethanol solution by pervaporation. The separation factor toward water reached over 15,000. Membrane performance showed a good correlation to membrane polarity. Differential scanning calorimetric melting endotherms of the water-swollen membranes were studied to clarify the state of water in the membranes. The results suggested that there are two states of water in the membrane: bound and free. The higher the fraction of bound water in the membrane, clearly, the more preferentially was water permeated.