Computer Simulations of Radiation-Cured Networks

L. Y. Shy, B. E. Eichinger

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

Simultaneous cross-linking and chain scission reactions that are induced by ionizing radiation have been simulated with a computer. These studies were performed for both bulk- and solution-cured poly(dimethylsiloxane) (PDMS) systems. Variations of network structures and mechanical properties that depend on the degree of cross-linking are presented. It is shown that radiation-cured networks are barely connected and contain large amounts of defect structures. More than 90% of the defects are found to be dangling ends, and isolated ends are dominant in this population. The weight fraction of loops is quite small, but they deplete a large fraction of the cross-links. These results are in good agreement with experiment and with other calculations. Potential correlations between network structures and the Mooney-Rivlin coefficients 2C1and 2C2 are also discussed.

Original languageEnglish
Pages (from-to)2787-2793
Number of pages7
JournalMacromolecules
Volume19
Issue number11
DOIs
Publication statusPublished - 1986 Jan 1

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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