Temperature dependent dielectric relaxation study of ethyl acetate - Alcohol mixtures using time domain technique

The dielectric relaxation studies of Ethyl Acetate in Methanol, Ethanol and Propan-1-ol have been carried out using a Time domain Reflectometry (TDR) technique in the frequency range 10 MHz to 20 GHz, at different concentrations and temperature range from 15 to 45 degreesC. The dielectric parameters, the Kirkwood correlation factor, the excess dielectric properties have also been determined. The excess permittivity is found to be negative for all the systems. The excess inverse relaxation is negative except near methanol rich region. The Bruggeman model for the nonlinear case has been fitted to the dielectric data for mixtures. (C) 2001 Elsevier Science B.V. All rights reserved.