Dielectric relaxation of polyurethane systems Part II: Shape parameters

  • A. Schönhals
  • E. Schlosser
Conference paper
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 78)


We report on dielectric relaxation measurements carried out on a crosslinked polyurethane system. The shape of the main relaxation is characterized by two parameters of the model function of Havriliak and Negami. The dependence of the shape parameters on the urethane group concentration is presented and interpreted by a new model.

Key words

Dielectric relaxation main transition shape parameters polyurethane network theoretical model 


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Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1998

Authors and Affiliations

  • A. Schönhals
    • 1
  • E. Schlosser
    • 1
  1. 1.Academy of SciencesCentral Institute of Organic ChemistryBerlinG.D.R.

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