Long-term viscoelastic response in physically aging amorphous polymers

Aleksey D. Drozdov

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

Long-term viscoelastic response in physically aging amorphous polymers

Aleksey D. Drozdov

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	342-346
Number of pages	5
Journal	Physica A: Statistical Mechanics and its Applications
Volume	249
Issue number	1-4
DOIs	https://doi.org/10.1016/S0378-4371(97)83869-1
State	Published - 2 Jan 1998

Keywords

Amorphous polymers
Physical aging
Viscoelasticity

ASJC Scopus subject areas

Statistics and Probability
Condensed Matter Physics

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10.1016/S0378-4371(97)83869-1

Cite this

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title = "Long-term viscoelastic response in physically aging amorphous polymers",

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.",

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AB - 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.

KW - Amorphous polymers

KW - Physical aging

KW - Viscoelasticity

UR - https://www.scopus.com/pages/publications/0345884542

U2 - 10.1016/S0378-4371(97)83869-1

DO - 10.1016/S0378-4371(97)83869-1

M3 - Article

AN - SCOPUS:0345884542

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JO - Physica A: Statistical Mechanics and its Applications

JF - Physica A: Statistical Mechanics and its Applications

IS - 1-4

ER -

Long-term viscoelastic response in physically aging amorphous polymers

Abstract

Keywords

ASJC Scopus subject areas

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