Dynamic mechanical analysis of bismaleimidodiphenyl methane and diallylbisphenol-A crosslinked polymers

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...

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Bibliographic Details
Published in:Journal of applied polymer science 1990-08, Vol.40 (3-4), p.411-416
Main Authors: Chattha, M. S., Dickie, R. A.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Rheology and viscoelasticity
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Summary: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 Tg range is 330–339°C.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.1990.070400309