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The preparation of microporous membranes from blends of poly(2,6-dimethyl-1,4-phenylene oxide) and sulfonated poly(2,6-dimethyl-1,4-phenylene oxide)

✍ Scribed by Jan Schauer; Wolfgang Albrecht; Thomas Weigel

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 301 KB
Volume: 73
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19990711)73:2<161::aid-app3>3.0.co;2-o

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✦ Synopsis

Poly(2,6-dimethyl-1,4

-phenylene oxide) (PPO) is a chemically resistant polymer and, therefore, an attractive material for the formation of membranes. However, membranes of unmodified PPO prepared by an immersion precipitation possess very low hydraulic permeabilities at the filtration processes. The membranes with higher hydraulic permeabilities can be prepared from sulfonated PPO and/or from blends of unsulfonated PPO and sulfonated PPO. In conclusion, the mechanism of the formation of membranes from blends of unsulfonated PPO and sulfonated PPO is suggested.

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