SEPARATION OF LIQUID-MIXTURES BY USING POLYMER MEMBRANES .3. WATER ALCOHOL SEPARATION BY PERVAPORATION THROUGH MODIFIED PAN MEMBRANE

被引：18

作者：

HU, CM ^{[1
]}

CHIANG, WY ^{[1
]}

机构：

[1] TATUNG INST TECHNOL,DEPT CHEM ENGN,40 CHUNGSHAN N RD,3RD SEC,TAIPEI 10451,TAIWAN

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1991年 / 42卷 / 07期

关键词：

D O I：

10.1002/app.1991.070420704

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

The modification of polyacrylonitrile membrane with ethanolamine was carried out, and the permeation characteristics in pervaporation were examined using the aqueous alcohol solutions. In pervaporation of a water/alcohol solution, preferential permeation of water was observed for all these membranes because of the hydrogen-bonding interaction. The selectivity of the modified polyacrylonitrile (PAN) membrane depended on operating temperature, but was independent on the thickness of the membrane. Furthermore, it was found that the membrane with more ethanolamine content had a higher affinity to water. The effect of feed concentration and the molecular size of the permeating species on the separation factor and permeation flux was also investigated.

引用

页码：1829 / 1833

页数：5

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