Cluster approach to the problems of diffusion and viscosity in supercooledstates of glycerol-like liquids

To explain the temperature dependence of self-diffusion coefficients, stati c shear viscosity, and electrical conductivity of highly viscous electrolyt es, the cluster representations developed by the authors are used. The inte rconnection of the enumerated transport coefficients with the most importan t kinetic characteristic of supercooled states - the lifetime of weakly bou nd clusters - is established. Internal self-consistency of the proposed for mulas and their accord with experimental results is discussed. Interpretati on of Vogel-Tamman-Fulcher temperature relationship is given. (C) 1999 Else vier Science B.V. All rights reserved.