SEPARATION OF WATER-ETHANOL MIXTURE THROUGH POLY(ACRYLONITRILE-CO-ACRYLIC ACID) POLY(ETHYLENE OXIDE) MEMBRANES BY PERVAPORATION

Authors
JO WH KIM HJ KANG YS
Citation
Wh. Jo et al., SEPARATION OF WATER-ETHANOL MIXTURE THROUGH POLY(ACRYLONITRILE-CO-ACRYLIC ACID) POLY(ETHYLENE OXIDE) MEMBRANES BY PERVAPORATION, Journal of applied polymer science, 51(3), 1994, pp. 529-535
Citations number
15
Categorie Soggetti
Polymer Sciences
Journal title
Journal of applied polymer science → ACNP
ISSN journal
00218995
Volume
51
Issue
3
Year of publication
1994
Pages
529 - 535
Database
ISI
SICI code
0021-8995(1994)51:3<529:SOWMTP>2.0.ZU;2-C
Abstract
The separation of water/ethanol mixtures was investigated by poly(acry lonitrile-co-acrylic acid) and by poly(acrylonitrile-co-acrylic acid)/ poly(ethylene oxide) blend membranes. The flux increased with the cont ent of acrylic acid in copolymers and the selectivity remained constan t. The marked increase of the selectivity was observed for blend membr anes of a certain blend ratio, suggesting that the two polymers are pa rtially miscible. Poly (ethylene oxide) in blends was thought to act a s a plasticizer as well as a preferentially water absorbing and diffus ing component. (C) 1994 John Wiley & Sons, Inc.