Combined experimental and simulation study of the cure kinetics of DCPD

Michael Aldridge, Chandreshekar Shankar, Changgua Zhen, Lang Sui, John Kieffer, Mary Caruso, Jeff Moore

Research output: Contribution to journalArticle

Abstract

The cure kinetics of dicyclopentadiene was investigated using a combination of inelastic light scattering measurements and molecular-scale simulations. Concurrent Brillouin and Raman scattering served to monitor the structural evolution of the curing network as a function of time, both in terms of network connectivity and the concentration of chemical species present. Density functional theory calculations were used to interpret the measured Raman spectra. Comparison of the measured elastic moduli as a function of the degree of cure with those of structures generated using reactive molecular dynamics simulations provide insight into the reaction mechanism. An unexpected dependence of the reaction rate on the catalyst concentration was found.

Original languageEnglish (US)
Pages (from-to)1827-1835
Number of pages9
JournalJournal of Composite Materials
Volume45
Issue number18
DOIs
StatePublished - Aug 1 2011

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Keywords

  • Cross-linked polymer networks
  • Light scattering
  • Molecular dynamics simulation

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry
  • Mechanical Engineering
  • Mechanics of Materials

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