Kinetic nature of the glass transition |
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Authors: | CL Choy K Young |
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Affiliation: | Department of Physics, The Chinese University of Hong Kong, Hong Kong China |
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Abstract: | A simple kinetic model is proposed to account for the behaviour of the specific heat of polymers near the glass transition. There is no need to assume any sudden changes of thermodynamic variables with temperature and the observed transition is attributed to a rapid but smooth change of the molecular relaxation time. The concept of a fictive temperature is introduced and is shown to be useful in understanding the behaviour of other thermodynamic quantities such as expansivity. |
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