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Compatibility of PTET‐60/CA blends and separation performance of their membranes for benzene/cyclohexane mixture by pervaporation
Author(s) -
Bai Yunxiang,
Qian Jinwen,
Zhao Qiang,
Xu Yong,
Ye Shengrong
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.24557
Subject(s) - pervaporation , membrane , chemistry , benzene , permeation , analytical chemistry (journal) , chromatography , materials science , organic chemistry , biochemistry
Abstract Aromatic copolyester of poly(trimethylene‐ co ‐ethylene terephthalate) (PTET) with different composition was synthesized and the PTET sample with 60% weight fraction of polytrimethylene (PTET‐60) was amorphous. The compatibility of PTET‐60/cellose acetate (CA) blends and the pervaporation of their membranes for separation of benzene/cyclohexane mixtures were investigated. It was found that PTET‐60 is compatible with CA when the weight fraction of PTET‐60 in PTET‐60/CA blends ( W PTET‐60 ) is lower than 0.35 and more than 0.5. Both the degree of swelling (DS) and the permeation flux ( J ) of these blend membranes increased with increasing W PTET‐60 from 0 to 0.35, and a maximum value of the separation factor (α) displayed at W PTET‐60 = 0.25. © 2006 Wiley Periodicals, Inc. J Appl PolymSci 102: 2832–2838, 2006