Long-term viscoelastic response in physically aging amorphous polymers

Aleksey D Drozdov

Physica A: Statistical Mechanics and its Applications, 1998, vol. 249, issue 1, 342-346

Abstract: Based on the concept of transient networks, a constitutive model is derived for the long-term viscoelastic response in physically aging amorphous polymers. Breakage and reformation rates for active chains of various kinds are assumed to depend on a sum of free-volume fractions, which are governed by kinetic equations. Comparison of numerical results with experimental data demonstrates fair agreement between observations and their prediction.

Keywords: Amorphous polymers; Physical aging; Viscoelasticity (search for similar items in EconPapers)
Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:249:y:1998:i:1:p:342-346

DOI: 10.1016/S0378-4371(97)83869-1

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