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Synthesis of sulfoxide‐modified ethylene—vinyl alcohol copolymers for the permselective membrane of sulfur dioxide
Author(s) -
Imai Kiyokazu,
Shiomi Tomoo,
Tezuka Yasuyuki,
Inokami Kiyotaka
Publication year - 1992
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990270405
Subject(s) - copolymer , vinyl alcohol , sulfoxide , ethylene , alcohol , chemistry , polymer chemistry , sulfur , alkyl , dimethyl sulfoxide , selectivity , sulfur dioxide , catalysis , membrane , organic chemistry , methanol , polymer , biochemistry
Abstract The Michael‐type addition reaction of ethylene‐vinyl alcohol copolymer (EVAL) with a series of vinyl sulfoxides namely methyl, ethyl, t ‐butyl and phenyl vinyl sulfoxides, was performed with NaOH as a catalyst in DMSO solution to produce 2‐(alkyl or phenyl sulfinyl)ethyl EVAL derivatives. The high perm‐selectivity of sulfur dioxide against nitrogen was achieved through these sulfoxide‐modified EVAL membranes.