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Synthesis, properties, and gas permeation performance of cardo poly(arylene ether sulfone)s containing phthalimide side groups
Author(s) -
Chen Guang,
Zhang Xiaosa,
Zhang Suobo,
Chen Tianlu,
Wu Yonglie
Publication year - 2007
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.26930
Subject(s) - arylene , polymer chemistry , ether , sulfone , materials science , thermal stability , solubility , glass transition , permeation , phthalimide , polymer , membrane , chemistry , organic chemistry , alkyl , composite material , aryl , biochemistry
Novel bisphenol monomers ( 1a‐d ) containing phthalimide groups were synthesized by the reaction of phenolphthalein with ammonia, methylamine, aniline, and 4‐ tert ‐butylanilne, respectively. A series of cardo poly(arylene ether sulfone)s was synthesized via aromatic nucleophilic substitution of 1a‐d with dichlorodiphenylsulfone, and characterized in terms of thermal, mechanical and gas transport properties to H 2 , O 2 , N 2 , and CO 2 . The polymers showed high glass transition temperature in the range 230–296°C, good solubility in polar solvents as well as excellent thermal stability with 5% weight loss above 410°C. The most permeable membrane studied showed permeability coefficients of 1.78 barrers to O 2 and 13.80 barrers to CO 2 , with ideal selectivity factors of 4.24 for O 2 /N 2 pair and 28.75 for CO 2 /CH 4 pair. Furthermore, the structure–property relationship among these cardo poly(arylene ether sulfone)s had been discussed on solubility, thermal stability, mechanical, and gas permeation properties. The results indicated that introducing 4‐ tert ‐butylphenyl group improved the gas permeability of polymers evidently. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007