Relationship between type of nonsolvent additive and properties of polyethersulfone membranes

被引：35
|
作者：
Laninovic, V [1 ]
机构：
[1] IMS Inst, Belgrade, Serbia Monteneg
来源：
DESALINATION | 2005年 / 186卷 / 1-3期
关键词：
polyethersulfone membrane; nonsolvent additive; structure; properties;
D O I：
10.1016/j.desal.2005.01.017
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Flat-sheet membranes were obtained by immersion precipitation from a polyethersulfone-dimethylacetamide-nonsolvent additive-water system. The effects of propionic acid, propionic acid anhydride, butyric acid and butyric acid anhydride, as an additive in a polymer solution, in relation to the phase separation process and membrane structure and properties were investigated. According to scanning electron microscopy analyses, it was found that a nonsolvent additive has a significant influence on structure of the membrane skin layer and the sublayer.
引用
收藏
页码：39 / 46
页数：8
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