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

doi:10.1007/s003960050487

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

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	1033-1040
Number of pages	8
Journal	Colloid and Polymer Science
Volume	277
Issue number	11
DOIs	https://doi.org/10.1007/s003960050487
Publication status	Published - Jan 1 1999
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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10.1007/s003960050487

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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.",

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AU - Salmerón, M.

AU - Torregrosa, C.

AU - Vidaurre, A.

AU - Meseguer Dueñas, J. M.

AU - Monleón Pradas, M.

AU - Gómez Ribelles, J. L.

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AB - 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.

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