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Studies on thermodynamic compatibility of nitrile rubber and polybutadiene by inverse gas chromatography
Author(s) -
Tripathi V. S.,
Lal Darshan,
Sen A. K.
Publication year - 1995
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.1995.070581004
Subject(s) - polybutadiene , nitrile rubber , acrylonitrile , nitrile , inverse gas chromatography , natural rubber , elastomer , compatibility (geochemistry) , materials science , flory–huggins solution theory , gas chromatography , polymer chemistry , chemistry , composite material , organic chemistry , polymer , copolymer , chromatography
Inverse gas chromatography technique has been used to study the thermodynamic compatibility of the industrially important elastomers polybutadiene (BR) and polybutadiene copolymerised with acrylonitrile (NBR). The NBR used in this study had nitrile contents of 18 and 34%. The ratio of BR/NBR in blends varied between 1 and 0.25 in both cases and retention volume of twelve probes was measured at 80°C. The Flory‐Huggins interaction parameter X ′ 23 , computed using a standard procedure, and also the interaction parameter B 23 showed that BR and NBR are incompatible in all compositions and that incompatibility increases with nitrile content. © 1995 John Wiley & Sons, Inc.