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Structures and gas permeabilities of poly(vinyl chloride)/oligo(dimethylsiloxane) blend membranes
Author(s) -
Lerma Merida Sotelo,
Iwamoto Kazutoshi,
Senō Manabu
Publication year - 1987
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.1987.070330225
Subject(s) - membrane , vinyl chloride , permeation , materials science , copolymer , polymer blend , polymer , polyvinyl chloride , chemical engineering , polymer chemistry , gas separation , composite material , chemistry , biochemistry , engineering
A series of polymer blend membranes with several weight ratios of poly(vinyl chloride) (PVC) and oligo(dimethylsiloxane) (ODMS) were prepared and the permeation behaviors of O 2 and N 2 were studied. These components are only partially miscible to each other, leading to a phase separation. In order to improve the compatibility of these polymer blends, the use of a graft copolymer PVC‐g‐ODMS was explored. The gas permeation studies, the thermal analyses, and the microscopic observations were made on PVC‐g‐ODMS/ODMS blend membranes, and the results indicate that these blend membranes have rather high gas permeabilities together with good mechanical properties.

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