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

To explain the temperature dependence of self-diffusion coefficients, static shear viscosity, and electrical conductivity of highly viscous electrolytes, the cluster representations developed by the authors are used. The interconnection of the enumerated transport coefficients with the most important kinetic characteristic of supercooled states - the lifetime of weakly bound clusters - is established. Internal self-consistency of the proposed formulas and their accord with experimental results is discussed. Interpretation of Vogel-Tamman-Fulcher temperature relationship is given. (C) 1999 Elsevier Science B.V. All rights reserved.