Enthalpy relaxation in glassy polymers

A. D. Drozdov

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Constitutive equations are derived for enthalpy recovery in amorphous glassy polymers. The model is based on the concept of cooperative relaxation which treats a polymer as an ensemble of flow units rearranging at random times. The rate of rearrangement is determined by the Eyring theory of thermally activated processes. Fair agreement is demonstrated between results of numerical simulation and experimental data for polycarbonate, poly(ether imide), poly(methyl methacrylate), polystyrene and a glycerol glass.

Original languageEnglish
Pages (from-to)353-360
Number of pages8
JournalPolymer Bulletin
Volume44
Issue number3
DOIs
StatePublished - 18 Dec 2000
Externally publishedYes

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