New technology for producing a homogeneous polyimide porous membrane by micro phase separation

被引：2
|
作者：
Ooya, S [1 ]
Yao, S [1 ]
Nagakura, K [1 ]
机构：
[1] Ube Ind Ltd, Polymer Res Lab, Chiba 2900045, Japan
来源：
KOBUNSHI RONBUNSHU | 2003年 / 60卷 / 11期
关键词：
porous membrane; polyimide; micro phase separation;
D O I：
10.1295/koron.60.664
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
In this study, we have developed a new technique to make a submicron multiporous membrane of a polyamic acid, a precursor of the polyimide, by covering the surface of the cast polyamic acid with a membrane which can control the substitution speed of a solvent. On heat-treating this membrane, a highly heat-resistant polyimide multiporous membrane was obtained. The membrane structure depends on the concentration of the polyamic polymer solution. It is therefore possible to create an excellent heat-resistant and solvent-proof membrane which has a special structure for various applications.
引用
收藏
页码：664 / 667
页数：4
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