ELECTRICAL-CONDUCTIVITY OF AQUEOUS POLYMER-SOLUTIONS .1. THEORY AND EXPERIMENTAL-VERIFICATION

Theoretical equations were proposed to adequately simulate the electri cal conductivity behavior of aqueous solutions of both charged and unc harged polymers. The theory, based on the mixture equation of Boned an d Peyrelasse, was experimentally verified on poly(acrylic acid) (PAA) in water and poly(ethylene oxide) (PEG) in aqueous electrolyte solutio ns. The data analysis suggested that both the polymer coils may be dep icted as oblate ellipsoids. Subsequently, the semiaxes values of the p olymer coils were determined, and they were in good agreement with the results reported in the literature.