Calorimetric study of the conformational relaxation times in polystyrene

M. Salmerón, C. Torregrosa, A. Vidaurre, J. M. Meseguer Dueñas, M. Monleón Pradas, J. L. Gómez Ribelles

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10 Citations (Scopus)

Abstract

The temperature dependence of the relaxation times of the structural relaxation process of polystyrene is determined by temperature-modulated differential scanning calorimetry (TMDSC) and by conventional differential scanning calorimetry (DSC) in the latter by modelling the experimental heat capacity curves measured in heating scans after different thermal histories. The good agreement between both measuring techniques in the temperature interval just above the glass-transition temperature is a guide for the interpretation of the results of the TMDSC technique in the glass-transition region. In addition, the same model applied to DSC scans is used to simulate the TMDSC experiment and the calculated response is compared with the measured scans.

Original languageEnglish
Pages (from-to)1033-1040
Number of pages8
JournalColloid and Polymer Science
Volume277
Issue number11
DOIs
Publication statusPublished - Jan 1 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Colloid and Surface Chemistry
  • Materials Chemistry

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