Dielectric relaxation study of ethyl acrylate-alcohol mixtures using time domain reflectometry

Abstract

Dielectric relaxation measurements on ethyl acrylate-alcohol (1-propanol, 1-butanol, 1-hexanol, and 1-octanol) mixtures for different concentrations over the frequency range 10 MHz-10 GHz have been carried out using time domain reflectometry. Parameters such as the static permittivity, dielectric relaxation time, the Kirkwood correlation factor, and the excess inverse relaxation time were determined and discussed to yield information on the molecular structure and dynamics of the mixture. The values of the dielectric properties decrease with increased ethyl acrylate concentration in alcohol and systematically vary with the alkyl chain length of alcohols. The excess inverse relaxation time values are found to be negative for all concentrations, it may indicate that the effective dipoles of the system rotate slowly.

Microwave assisted co-operative dynamics and structural variations in chlorobenzene-acetonitrile solutions

“…Excess permittivity is a dielectric parameter, provides information concerning interaction between constituents of mixture (Joshi et al, 2016). Excess permittivity ε' E is defined as (Sivagurunathan, 2006),…”

Dielectric Relaxation Studies of 2-Butoxyethanol with Aniline and Substituted Anilines Using Time Domain Reflectometry

“…Dielectric studies on mixtures of polar liquids either in the pure state or in the inert solvents have been a subject of interest because they provide useful information regarding molecular complex formation in solution [1]. A significance of the intermolecular interactions in the dynamics of molecules, as revealed in dielectric relaxation spectroscopy, is one of the most important and still open problems of molecular physics of the liquid state [2]. Anilines are the prototypical aromatic amine.…”