Glass-transition temperature in the curing process of bismaleimide modified with diallylbisphenol A

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Original languageEnglish
Pages (from-to)3244-3247
Journal / PublicationJournal of Applied Polymer Science
Issue number5
Online published16 Jan 2004
Publication statusPublished - 5 Mar 2004
Externally publishedYes


The Tg-conversion relationship, during the thermal curing of different stoichiometric formulations of 1,1′-(methylene-di-4,1-phenylene) bismaleimide (BMI), modified with o,o′-diallyl bisphenol A (DABA), was investigated. The DiBenedetto equation was used to model this relationship for the formulation of DABA-1 (BMI:DABA, 1:1). Based on this model, the Tg-conversion relationship of formulation DABA-0.5 (BMI:DABA, 1:0.5) was modeled. The high consistency between the model curve and experimental data showed that the change of Tg, attributed to copolymerization between BMI and DABA in DABA-0.5, in the low-conversion regime, was the same as that in DABA-1. This also verifies that, for the formulation DABA-0.5, copolymerization and homopolymerization do not overlap with each other. The reactions progressed sequentially and homopolymerization occurred after completion of copolymerization. © 2004 Wiley Periodicals, Inc.

Research Area(s)

  • Bismaleimide, Copolymerization, Curing of polymers, Diallylbisphenol A, Glass transition