Effect of CO2 plasticization on azobenzene diffusion in glassy polystyrene near the glass transition

Bryan R. Chapman, Michael E. Paulaitis, Craig R. Gochanour

Research output: Contribution to journalArticle

Abstract

The forced Rayleigh scattering measurements of azobenzene diffusion on polystyrene across the CO2-induced glass transition for two additional temperatures are reported. The results are used to compare the effects of plasticization by temperature and by added CO2 on solute diffusion. For the temperatures studied, the isomer diffusion coefficients are plotted as a function of CO2 weight fraction. At the glass transition, the probe mobility is sensitive to CO2 concentration.

Original languageEnglish (US)
Pages (from-to)340-342
Number of pages3
JournalMacromolecules
Volume34
Issue number2
DOIs
StatePublished - Jan 16 2001

ASJC Scopus subject areas

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

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