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A study of solvent exchange process in (ethylene–vinyl alcohol) copolymer gels by a proton nuclear magnetic resonance spectroscopy imaging method
Author(s) -
Kanekiyo Masahito,
Kobayashi Masatoshi,
Ando Isao,
Kurosu Hiromichi,
Amiya Shigetoshi
Publication year - 2002
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.11010
Subject(s) - copolymer , solvent , ethylene , vinyl alcohol , polymer chemistry , materials science , proton , nuclear magnetic resonance spectroscopy , spectroscopy , proton nmr , chemistry , organic chemistry , polymer , catalysis , composite material , physics , quantum mechanics
The proton nuclear magnetic resonance ( 1 H NMR) image patterns of (ethylene–vinyl alcohol) copolymer (EVOH)/dimethylsulfoxide (DMSO) gels with various ethylene contents were measured to elucidate the process of solvent exchange between DMSO and water in the gels soaked in water. The results of these experiments indicate that the rate of solvent exchange between DMSO and water in the gels increased with an increase in the ethylene content of EVOH copolymers. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 504–508, 2002