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Novel effect of barbituric acid on glass transition temperature of bismaleimide–epoxy resin systems

✍ Scribed by Jing-Pin Pan; Gwo-Yuh Shiau; Ker-Ming Chen

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
473 KB
Volume
44
Category
Article
ISSN
0021-8995

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✦ Synopsis

Barbituric acid (BTA) has a novel influence on glass transition temperature (T,) of bismaleimide (BMI) -epoxy resin systems. It causes the T, of a BMI-epoxy resin system to rise significantly. The BTA's influence on T, was investigated by changing the molar ratio of the reactants. In addition, the influence of benzoperoxide (BPO) on Tg was compared with that of BTA. The reaction selectivity of BTA and diamino-diphenyl sulfone (DDS) toward BMI and epoxy individually in the BMI-epoxy blended systems were studied using the DSC and GPC. By controlling the amount of DDS and BTA, epoxy and BMI could form intercrosslinking networks.

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