Thermodynamic theory for characterizing thermo-mechanical response of polymers during crystallization

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Based on continuum thermodynamics of solids, a theoretical structure is developed s to characterize the thermo-mechanical effects of polymer crystallization. A material restriction is used to impose an empirically used scalar relation between temperature, the degree of crystallinity, and volume. This and the restriction imposed by the entropy production inequality are used to relate the Cauchy stress and entropy to the free energy, and also to provide a restriction on the rate of crystallization. This concepts of melting temperature, heat of crystallization, and heat capacity are developed in the context of the proposed structure. Elements of a specific model for natural rubber are presented.

Original languageEnglish (US)
Pages (from-to)45-60
Number of pages16
JournalAmerican Society of Mechanical Engineers, Applied Mechanics Division, AMD
Volume203
StatePublished - Jan 1 1995
EventProceedings of the 1995 Joint ASME Applied Mechanics and Materials Summer Meeting - Los Angeles, CA, USA
Duration: Jun 28 1995Jun 30 1995

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Crystallization
Thermodynamics
Polymers
Entropy
Free energy
Specific heat
Melting point
Rubber
Temperature
Hot Temperature

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

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abstract = "Based on continuum thermodynamics of solids, a theoretical structure is developed s to characterize the thermo-mechanical effects of polymer crystallization. A material restriction is used to impose an empirically used scalar relation between temperature, the degree of crystallinity, and volume. This and the restriction imposed by the entropy production inequality are used to relate the Cauchy stress and entropy to the free energy, and also to provide a restriction on the rate of crystallization. This concepts of melting temperature, heat of crystallization, and heat capacity are developed in the context of the proposed structure. Elements of a specific model for natural rubber are presented.",
author = "Mehrdad Negahban",
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AB - Based on continuum thermodynamics of solids, a theoretical structure is developed s to characterize the thermo-mechanical effects of polymer crystallization. A material restriction is used to impose an empirically used scalar relation between temperature, the degree of crystallinity, and volume. This and the restriction imposed by the entropy production inequality are used to relate the Cauchy stress and entropy to the free energy, and also to provide a restriction on the rate of crystallization. This concepts of melting temperature, heat of crystallization, and heat capacity are developed in the context of the proposed structure. Elements of a specific model for natural rubber are presented.

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