Abstract
Abstract Dielectric relaxation times and distribution parameters of three esters in benzene solutions have been evaluated using three methods, viz., Cole-Cole arc plot method, Higasi’s single frequency method and the Gopal Krishna method. Three microwave frequencies have been used to determine a′ and a″ apart from the static and optical frequencies for a0 a∞. The distribution parameters obtained from Cole-Cole arc plot and Higasi’s method are in good agreement showing that the sploes a′ and a″ have been determined accurately. In these esters the values of the distribution parameter are high. Since the dipole-dipole interactions are negligible in dilute solutions, the higher values of the distribution parameter suggests the existence of multiple relaxation processes.
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