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An Adam‐Gibbs based model for the temperature behavior of polymers near glass transition
Author(s) -
Wicht Daniel,
Kehrer Loredana,
Wood Jeffrey T.,
Böhlke Thomas
Publication year - 2018
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201800395
Subject(s) - glass transition , arrhenius equation , thermodynamics , rheology , polymer , gibbs free energy , materials science , function (biology) , activation energy , physics , chemistry , composite material , evolutionary biology , biology
Abstract The mechanical behavior of polymers and other glass forming materials is strongly time‐ and temperature‐dependent. Based on the rheological Poynting‐Thomson Model and the Adam‐Gibbs equation, a shift function is developed which relates the time constants of a material to temperature. The behavior of this function is compared to the established Williams‐Landel‐Ferry and Arrhenius equations in the glassy and rubbery temperature regimes.