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Development of thin-film composite hollow-fiber membranes from modified polyphenylene oxide for gas separation applications

✍ Scribed by Geeta Chowdhury; Shengshi Deng; Takeshi Matsuura; Brendan Laverty

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 118 KB
Volume: 79
Category: Article
ISSN: 0021-8995
DOI: 10.1002/1097-4628(20010110)79:2<275::aid-app80>3.0.co;2-4

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✦ Synopsis

The effect of sulfonation and bromination-sulfonation on the gas transport properties of polyphenylene oxide has been investigated. These high-performance modified polymers have been studied in the form of TFC membranes by solution coating on the skin side of polyetherimide hollow fibers. TFC membrane modules prepared from sulfonated-brominated polyphenylene oxide as the active layer coated on polyetherimide hollow fibers. Stability of the TFC membranes was greatly improved when a wet feed stream was used instead of a dry one. Water vapor in the feed stream most likely prevented the active layer from stress cracking on drying.

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