Physical Aging and Dye Diffusion in Polysulfone Below the Glass Transition Temperature.

Abstract

The effect of physical aging on the tracer diffusion coefficient D of camphorquinone in polysulfone is investigated. It is shown that if the sample is sufficiently annealed and physical aging is nearly complete, the temperature dependence of D will reflect the primary alpha-relaxation process of the host polymer. In the temperature range between T (= 185 deg C) and 165 deg C, D is found to be a function of time, and the time dependence of D is given by D = At(-)micron, with micron approximately equal to unity.

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1993
Accession Number
ADA269247

Entities

People

  • C. W. Wang
  • X. Q. Zhang

Organizations

  • University of Nebraska-Lincoln Department of Chemistry

Tags

DTIC Thesaurus Topics

  • Coefficients
  • Diffusion
  • Diffusion Coefficient
  • Glass
  • Glass Transition Temperature
  • Time Dependence
  • Transition Temperature
  • Transitions

Readers

  • Aerosol Science/Aerosol Physics
  • Polymer Science and Engineering.