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Thermally Stimulated Depolarization Currents

Study of β-relaxations of amorphous polyesters

  • JCAT′97 28th Conference on Calorimetry and Thermal Analysis Dunkirk, France May 27–30, 1997
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Abstract

The β-relaxation of amorphous polyesters was studied by measurement of Thermally Stimulated Depolarisation Currents in order to elucidate the nature of the motions at the origin of the β-relaxation. The β-relaxation peaks differ for the studied polymers. The first component, β1 can be assigned to the motion of carboxyl groups while the second component, β2 must be attributed to motion along the chain of a short segment. By the use of elementary spectra it appears that the motions which occur during the β relaxation are localized and non-cooperative.

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Authors and Affiliations

  1. Laboratoire d’Etude et de Caractérisation des Amorphes et des Polymères, Université de Rouen, Faculté des Sciences, 76821, Mont-Saint-Aignan, Cedex, France

    M. Kattan, C. Cabot, E. Dargent, J. Bayard & J. Grenet

Authors
  1. M. Kattan
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  2. C. Cabot
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  3. E. Dargent
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  4. J. Bayard
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  5. J. Grenet
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Kattan, M., Cabot, C., Dargent, E. et al. Thermally Stimulated Depolarization Currents. Journal of Thermal Analysis 51, 765–772 (1998). https://doi.org/10.1007/BF03341453

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  • DOI: https://doi.org/10.1007/BF03341453

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