Physical aging studies in polymer blends. 2. Enthalpy relaxation as a function of aging temperature in a poly(vinyl methyl ether)/polystyrene blend

J. M G Cowie, Roderick Ferguson

Research output: Contribution to journalArticle

Abstract

A series of enthalpy relaxation experiments at different aging temperatures was conducted on a poly(vinyl methyl ether)/polystyrene blend using a differential scanning calorimeter (DSC). The enthalpic aging data were analyzed in terms of two models for describing physical aging in polymer systems. Comparisons were also made between blend and homopolymer aging data. It has been found that the PVME component in the blend appears to age independently of the PS component and is responsible for essentially all of the aging effects measured. The PS component will, however, retard the physical aging processes of PVME in the blend. © 1989 American Chemical Society.

Original languageEnglish
Pages (from-to)2312-2317
Number of pages6
JournalMacromolecules
Volume22
Issue number5
Publication statusPublished - 1989

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