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Separability of SO 2 from SO 2 /N 2 mixture through sulfoxide‐modified poly(vinyl alcohol) and cellulose membranes
Author(s) -
Imai Kiyokazu,
Shiomi Tomoo,
Tezuka Yasuyuki,
Itamochi Hiroko,
Miya Masamitsu
Publication year - 1993
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.1993.070480903
Subject(s) - vinyl alcohol , sulfoxide , membrane , cellulose , dimethyl sulfoxide , polymer chemistry , chemistry , polymer , organic chemistry , materials science , biochemistry
Separability of SO 2 from mixtures of SO 2 and N 2 gases was studied for membranes of poly(vinyl alcohol) (PVA) and cellulose modified with methyl, ethyl, t ‐butyl, and phenyl vinyl sulfoxides. Of these sulfoxide‐modified polymers, the phenyl vinyl sulfoxide‐modified PVA membranes were found to give the best separation of SO 2 . In the phenyl vinyl sulfoxide modified PVA membranes, the permeability coefficient of SO 2 increased with sulfoxide content while separability of SO 2 was maximum at a sulfoxide content of 23.5 mol %; the separation factor of SO 2 was about 170 at this sulfoxide content. © 1993 John Wiley & Sons, Inc.