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Separation of alkane–acetone mixtures using styrene–butadiene rubber/natural rubber blend membranes
Author(s) -
George Soney C.,
Prasad Kishan,
Misra J. P.,
Thomas Sabu
Publication year - 1999
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/(sici)1097-4628(19991220)74:13<3059::aid-app8>3.0.co;2-m
Subject(s) - membrane , natural rubber , vulcanization , pervaporation , swelling , styrene butadiene , acetone , materials science , alkane , permeation , styrene , chemical engineering , polymer chemistry , polymer blend , chemistry , composite material , copolymer , polymer , organic chemistry , hydrocarbon , biochemistry , engineering
Conventionally vulcanized styrene–butadiene rubber/natural rubber blend membranes were prepared for the pervaporation separation of alkane–acetone mixtures. Swelling measurements were carried out in both acetone and n ‐alkanes to investigate the swelling behavior of the membranes. The swelling behavior was found to depend on the composition of the blend. The effects of blend ratio, feed composition, and penetrant size on the pervaporation process were analyzed. The permeation properties have been explained on the basis of interaction between the membrane and solvents and blend morphology. The SBR/NR 70/30 blend membrane showed higher selectivity among all the membranes used. Flux increases with increasing alkane content in the feed composition. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 3059–3068, 1999