The effect of temperature on physical aging of glassy polymers

Aleksey D. Drozdov

doi:10.1002/app.1787

The effect of temperature on physical aging of glassy polymers

Aleksey D. Drozdov

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

8 Scopus citations

Abstract

Constitutive equations are derived for the linear viscoelastic response of amorphous glassy polymers subjected to physical aging. Stress-strain relations are applied to fit experimental data for poly(methyl methacrylate), poly(styrene-co-acronitrile), and poly(vinyl acetate) in tensile relaxation tests and in torsional dynamic tests at various temperatures. Fair agreement is demonstrated between observations and results of numerical simulation. It is revealed that an increase in the annealing temperature results in an increase in the rate of relaxation and a decrease in the apparent rate of structural recovery.

Original language	English
Pages (from-to)	3309-3320
Number of pages	12
Journal	Journal of Applied Polymer Science
Volume	81
Issue number	13
DOIs	https://doi.org/10.1002/app.1787
State	Published - 23 Sep 2001
Externally published	Yes

Keywords

Constitutive equations
Glassy polymers
Physical aging
Thermal effects
Viscoelasticity

ASJC Scopus subject areas

General Chemistry
Surfaces, Coatings and Films
Polymers and Plastics
Materials Chemistry

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10.1002/app.1787

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AB - Constitutive equations are derived for the linear viscoelastic response of amorphous glassy polymers subjected to physical aging. Stress-strain relations are applied to fit experimental data for poly(methyl methacrylate), poly(styrene-co-acronitrile), and poly(vinyl acetate) in tensile relaxation tests and in torsional dynamic tests at various temperatures. Fair agreement is demonstrated between observations and results of numerical simulation. It is revealed that an increase in the annealing temperature results in an increase in the rate of relaxation and a decrease in the apparent rate of structural recovery.

KW - Constitutive equations

KW - Glassy polymers

KW - Physical aging

KW - Thermal effects

KW - Viscoelasticity

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ER -

The effect of temperature on physical aging of glassy polymers

Abstract

Keywords

ASJC Scopus subject areas

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