Phase separation processes in polymer solutions in relation to membrane formation

被引:1078
作者
vandeWitte, P
Dijkstra, PJ
vandenBerg, JWA
Feijen, J
机构
[1] UNIV TWENTE, DEPT CHEM TECHNOL, NL-7500 AE ENSCHEDE, NETHERLANDS
[2] UNIV TWENTE, INST BIOMED TECHNOL, NL-7500 AE ENSCHEDE, NETHERLANDS
关键词
membrane preparation and structure; theory; thermodynamics; phase transitions; mass transfer models; CELLULOSE-ACETATE MEMBRANES; ACID-WATER-SYSTEMS; ASYMMETRIC POLYSULFONE MEMBRANES; THERMOREVERSIBLE GELATION; IMMERSION-PRECIPITATION; INVERSION MEMBRANES; MASS-TRANSFER; POLY(METHYL METHACRYLATE); ATACTIC POLYSTYRENE; FORMATION MECHANISM;
D O I
10.1016/0376-7388(96)00088-9
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
This review covers new experimental and theoretical physical research related to the formation of polymeric membranes by phase separation of a polymer solution, and to the morphology of these membranes. Two main phase separation processes for polymeric membrane formation are discussed: thermally induced phase separation and immersion precipitation. Special attention is paid to phase transitions like liquid-liquid demixing, crystallization, gelation, and vitrification, and their relation to membrane morphology. In addition, the mass transfer processes involved in immersion precipitation, and their influence on membrane morphology are discussed.
引用
收藏
页码:1 / 31
页数:31
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