✦ LIBER ✦

Phase inversion membranes with an organized surface structure from mixtures of polysulfone and polysulfone—poly(ethylene oxide) block copolymers

✍ Scribed by Lawrence F. Hancock

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 204 KB
Volume: 66
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19971114)66:7<1353::aid-app13>3.0.co;2-3

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✦ Synopsis

Phase inversion precipitation of a polysulfone and polysulfone-poly(ethylene oxide) block copolymer solution yields a membrane with an organized surface structure. The poly(ethylene oxide) block of the polysulfone-poly(ethylene oxide) block copolymer segregates to the surface of the membrane. Measurement of the 1 H T 1r of the component materials, X-ray photoelectron spectroscopy, and differential scanning calorimetry reveal the organized surface structure of the membrane.