Predicting the Thermodynamic Ideal Glass Transition Temperature in Glass-Forming Liquids

Abstract

The Kauzmann temperature T_K is a lower limit of glass transition temperature, and is known as the ideal thermodynamic glass transition temperature. A supercooled liquid will condense into glass before T_K. Studying the ideal glass transition temperature is beneficial to understanding the essence of glass transition in glass-forming liquids. The Kauzmann temperature T_K values are predicted in 38 kinds of glass-forming liquids. In order to acquire the accurate predicted T_K by using a new deduced equation, we obtained the best fitting parameters of the deduced equation with the high coefficient of determination (R² = 0.966). In addition, the coefficients of two reported relations are replaced by the best fitting parameters to obtain the accurate predicted T_K, which makes the R² values increase from 0.685 and 0.861 to 0.970 and 0.969, respectively. Three relations with the best fitting parameters are applied to obtain the accurate predicted T_K values.