A brief critique of the Adam-Gibbs entropy model

TL;DR

This paper critically examines the Adam-Gibbs entropy model for glass-forming liquids, analyzing its theoretical foundations and experimental support, and identifies several issues with its validity.

Contribution

It provides a detailed critique of the Adam-Gibbs model, highlighting its theoretical and experimental limitations.

Findings

Identifies problems with the Adam-Gibbs model

Questions the model's theoretical basis

Highlights inconsistencies with experimental data

Abstract

This paper critically reviews the entropy model proposed by Adam and Gibbs in 1965 for explaining the dramatic temperature dependence of glass-forming liquids' average relaxation time, one of the most influential models during the last three decades. We discuss the Adam-Gibbs model's theoretical bases as well as the reported experimental model confirmations; in the process of doing this a number of problems with the model are identified.