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Structural relaxation characteristics of glass-forming polymeric liquids subject to transisent cross-links

  • L. M. Torell
  • P. Jacobsson
  • D. Sidebottom
  • L. Börjesson
Chapter
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 91)

Abstract

We examine the relevance of the strong-fragile classification scheme for glass-forming polymeric systems using results from Brillouin and photon correlation spectroscopy. The dynamics of salt doped polypropylene oxide (PPO) have been investigated in relation to induced local structural ordering. It is accomplished by forming complexes of NaCF3SO3-PPO in which the cations act as transient cross-links between chains. The amount of cross-links depends on salt concentration and temperature. This allows for a test of the suggested relation between structural properties and some characteristics of the relaxation function such as its non-exponential time decay and non-Arrhenius temperature dependence.

Key words

Structural relaxation strong-fragile light scattering 

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Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1993

Authors and Affiliations

  • L. M. Torell
    • 1
  • P. Jacobsson
    • 1
  • D. Sidebottom
    • 1
  • L. Börjesson
    • 1
  1. 1.Dept. of PhysicsChalmers University of TechnologyGothenburgSweden

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