Dynamics of glass-forming liquids. V. On the link between molecular dynamics and configurational entropy

Abstract

We compare dielectric relaxation τ(T) data of several low molecular weight glass-forming liquids with the predictions of the Adam-Gibbs theory using experimental data for the configurational entropy Sc(T). Combination of Adam-Gibbs and Vogel-Fulcher equations yields an expression for Sc(T) which can be compared with experimental data. Good agreement is found for a range of temperatures near Tg