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Low-temperature elasticity of amorphous polymers: Molecular model and rheological equation

Authors :
V. D. Natsik
H. V. Rusakova
Source :
Low Temperature Physics. 48:253-263
Publication Year :
2022
Publisher :
AIP Publishing, 2022.

Abstract

A molecular-kinetic model of the processes of highly elastic deformation of amorphous polymers is proposed and, on its basis, nonlinear rheological equations are obtained; these latter make it possible to describe these processes under changes of deformation conditions in a wide range: temperature, deforming stress, and strain rate. A connection of the nonlinear micromechanical model of a polymer with the classical macromechanical model of a standard linear body is established. The transitions between the structural-deformation states of a warm and frozen elastomer, as well as the effects of low-temperature deformation melting and quantum elasticity of an amorphous polymer, are discussed.

Details

ISSN :
10906517 and 1063777X
Volume :
48
Database :
OpenAIRE
Journal :
Low Temperature Physics
Accession number :
edsair.doi...........e56ddf02859a51063a58a5a1caa3357b
Full Text :
https://doi.org/10.1063/10.0009545