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The effect of castor oil on the structure and properties of polyurethane elastomers
Author(s) -
Saxena P. K.,
Srinivasan S. R.,
Hrouz J.,
Ilavský M.
Publication year - 1992
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.1992.070440804
Subject(s) - castor oil , polyurethane , materials science , elastomer , glass transition , ultimate tensile strength , swelling , composite material , dynamic mechanical analysis , polymer chemistry , polymer , chemistry , organic chemistry
Segmented polyurethane elastomers based on a mixture of castor oil and poly(propylene glycol), 4,4'‐diphenylmethane diisocyanate, and 1,4‐butanediol were prepared. The ultimate, thermal, dynamic mechanical behavior and morphology were studied. The use of castor oil shifts the main transition region of the soft phase to higher temperatures (the glass transition temperature T g increases) improves abrasion resistance and the tensile strength. The multifunctionality of castor oil leads to the crosslinking of the soft segments and a decrease of the sol and swelling of elastomers.