Degradative thermal analysis and dielectric spectroscopy studies of aging in polysiloxane nanocomposites

J. P. Lewicki, J. J. Liggat, D. Hayward, R. A. Pethrick, M. Patel

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)

Abstract

The characterization o f the physical and chemical changes that occur in montmorillonite/PDMS nanocomposite elastomers as they are thermally aged is reported. Broadband Dielectric Spectroscopy (BDS) was used to track changes in the physical interaction between the polymer and clay associated with increases in non-oxidative thermal stability (as determined by TGA). The evolution of volatile siloxane species from the elastomers was characterized with Thermal Volatilization Analysis (TVA). Results suggest that the improved thermal stability and the increases in polymer/clay association are a result of significant re-structuring of the polymer network.

Original languageEnglish
Title of host publicationPolymer Degradation and Performance
PublisherAmerican Chemical Society
Chapter21
Pages239-254
Number of pages16
Volume1004
ISBN (Print)9780841269781
DOIs
Publication statusPublished - 1 Jan 2009

Publication series

NameACS Symposium Series
Volume1004
ISSN (Print)0097-6156
ISSN (Electronic)1947-5918

Keywords

  • silicones
  • dielectric spectroscopy
  • elastomers
  • nanocomposites
  • thermoanalysis
  • thermodynamic stability

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  • Cite this

    Lewicki, J. P., Liggat, J. J., Hayward, D., Pethrick, R. A., & Patel, M. (2009). Degradative thermal analysis and dielectric spectroscopy studies of aging in polysiloxane nanocomposites. In Polymer Degradation and Performance (Vol. 1004, pp. 239-254). (ACS Symposium Series; Vol. 1004). American Chemical Society. https://doi.org/10.1021/bk-2009-1004.ch021