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Dynamic mechanical analysis of bismaleimidodiphenyl methane and diallylbisphenol‐A crosslinked polymers
Author(s) -
Chattha M. S.,
Dickie R. A.
Publication year - 1990
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.1990.070400309
Subject(s) - dynamic mechanical analysis , glass transition , materials science , polymer , thermal analysis , methane , composite material , stoichiometry , atmospheric temperature range , modulus , dynamic modulus , thermal , polymer chemistry , chemistry , thermodynamics , organic chemistry , physics
Abstract Crosslinked compositions prepared from bismaleimidodiphenyl methane and diallylbisphenol A in the weight ratio of 0.99 to 1.31 have been subjected to dynamic mechanical thermal analysis (DMTA). The glass transition temperatures of all these fully cured compositions are above 300°C. The stoichiometry of the reactants in the above range does not change the thermal degradation pattern of these crosslinked polymers. DMTA shows that there is a very small decrease in storage modulus at room temperature with increasing amount of diallylbisphenol A. The glass trnasition temperature decreases slightly as the amount of diallylbisphenol A increases; the T g range is 330–339°C.