Experimental Demonstration of Tg

Techniques for locating can be divided into two categories dynamic and static. In the static methods, changes in the temperature dependence of an intensive property, such as density or heat capacity, are followed and measurements carried 

FIGURE 12.2 Schematic representation of the changes with temperature of volume (V), enthalpy (//), and entropy (S), and the first derivative of V and H for a (a) first-order and (b) second-order transition. 

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