Abstract
With reference to the analysis of a thermomechanical curve obtained in the usual way it is shown that by virtue of its sharply expressed dependence on time in the region of the glass-transition point the strain is not a sufficiently convenient criterion for estimating the glass-transition temperature of a polymer. A modified method of constructing the thermomechanical curve, which takes this factor into account, is proposed. The possibility of using this method to investigate the plasticization of cellulose triacetate films is demonstrated.
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