Thermal properties and water sorption behaviors of epoxy and bismaleimide composites

Jongchul Seo, Wonbong Jang, Haksoo Han

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


In this work, we prepared epoxy/BMI composites by using N,N′-bismaleimide-4,4′-diphenylmethane (BMI), epoxy resin (diglycidyl ether of bisphenol-A (DGEBA)), and 4,4′-diamino diphenyl methane (DDM). The thermal properties and water sorption behaviors of the epoxy and BMI composites were investigated. For the epoxy/BMI composites, the glass transition and decomposition temperatures both increased with increasing BMI addition, which indicates the effect of BMI addition on improved thermal stability. The water sorption behaviors were gravimetrically measured as a function of humidity, temperature, and composition. The diffusion coefficient and water uptake decreased and the activation energy for water diffusion increased with increasing BMI content, indicating that the water sorption in epoxy resin, which causes reliability problems in electronic devices, can be diminished by BMI addition. The water sorption behaviors in the epoxy/BMI composites were interpreted in terms of their chemical and morphological structures.

Original languageEnglish
Pages (from-to)10-16
Number of pages7
JournalMacromolecular Research
Issue number1
Publication statusPublished - 2007 Feb

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry


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