Dielectric Properties of Polyelectrolyte Solutions Behaviour of Aqueous Solutions of Carboxymethylcellulose with Different Univalent Counterions

Abstract

Dielectrics 1 Electrical PropertiesThe dielectric properties of carboxymethylcellulose in various uni-univalent electrolyte solutions in the frequency range from 1 KHz to 10 MHz have been measured by means of a conventional impedance bridge technique. -Two contiguous dielectric dispersions, due to different molecular mechanisms, have been observed, in accordance with the usual behaviour of linear, high-charged polyelectrolytes. -The influence of the molecular weight, polyion concentration and different monovalent counterions (Na+, K + , Li+) has been examinated.-The results are analyzed in terms of rod-like polyelectrolyte dielectric models taking into account the polarization due to the fluctuation in the counterion concentration.