Thermodynamics of Enthalpy Relaxation and Hole Formation of Polymer Glasses
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Enthalpy recovery in semicrystalline polymers
Constitutive equations are derived for enthalpy recovery in polymeric glasses after thermal jumps. The model is based on the theory of cooperative relaxation in a version of the trapping concept. It is demonstrated that some critical temperature Tcr and some critical degree of crystallinity fcr exist in a semicrystalline polymer above which the energy landscape becomes homogeneous and structura...
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