Theory of Slow Dynamics and Barrier Hopping in Colloidal Suspensions and Polymer Melts
The theory is extended to polymer melts based on a coarse-grained model in which the melt is treated as a liquid of segments. The barrier is predicted to be a function of a single parameter that is chemical structure, temperature and pressure dependent. Qualitative agreement with experiment is found for characteristics of the kinetic glass transition, and the importance of the experimentally observed near-universality of the dynamic crossover time is established.
University of Illinois - Urbana-Champaign
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University of Illinois at Urbana-Champaign