Pervaporation separation of styrene-ethylbenzene mixture using poly(hexamethylene sebacate)-based polyurethane membranes

Citation
B. Cao et T. Kajiuchi, Pervaporation separation of styrene-ethylbenzene mixture using poly(hexamethylene sebacate)-based polyurethane membranes, J APPL POLY, 74(4), 1999, pp. 753-761
Citations number
16
Categorie Soggetti
Organic Chemistry/Polymer Science","Material Science & Engineering
Journal title
JOURNAL OF APPLIED POLYMER SCIENCE
ISSN journal
00218995 → ACNP
Volume
74
Issue
4
Year of publication
1999
Pages
753 - 761
Database
ISI
SICI code
0021-8995(19991024)74:4<753:PSOSMU>2.0.ZU;2-E
Abstract
A series of poly(hexamethylene sebacate) (PHS), with molecular weight in a range of 890-2200, based polyurethanes (PU), were synthesized by solution p olymerization with different kinds of isocyanate and chain extender and two kinds of polymerization methods. All the PHS-based PU membranes exhibited selectivity towards styrene during the pervaporation of styrene-ethylbenzen e mixtures, and the properties of sorption and pervaporation were related t o the composition of the PU membranes. Membranes with a low hard-segment co ntent and by two-stage polymerization method exhibited high permselectivity . (C) 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 753-761, 1999.