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Long-term viscoelastic response in physically aging amorphous polymers

Author

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  • Drozdov, Aleksey D

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.

Suggested Citation

  • Drozdov, Aleksey D, 1998. "Long-term viscoelastic response in physically aging amorphous polymers," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 249(1), pages 342-346.
    • Handle: RePEc:eee:phsmap:v:249:y:1998:i:1:p:342-346
    DOI: 10.1016/S0378-4371(97)83869-1
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