Diffusion phenomena during cyanate resin cure

Yong Deng, George C. Martin

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

The diffusion phenomena, including the molecular diffusion processes and the effect of diffusion on the cure kinetics and molecular size distribution, during the curing of a zinc-catalysed cyanate ester resin have been studied. The average diffusivity, which was estimated using the dielectric analysis-based approach, decreased by several orders of magnitude during the curing process. The molecular size distribution measured with size exclusion chromatography was found to deviate from the mean-field prediction at relatively high conversions. By using the Rabinowitch model, a diffusion-controlled kinetic model was formulated, which adequately predicted the experimental cyanate conversion profiles over the entire range of cure.

Original languageEnglish (US)
Pages (from-to)3593-3601
Number of pages9
JournalPolymer
Volume37
Issue number16
DOIs
StatePublished - Aug 1996

Keywords

  • Cyanate ester resins
  • Diffusion
  • Diffusion-controlled kinetics

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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