Viscosity of Dilute Solutions of Polyelectrolytes

Abstract

The viscosity measurements were performed with poly (vinyl alcohol) partially acetalized with glyoxylic acid, in solutions of a simple electrolyte, and Pals and Hermans' method of dilution was used. It was found that the extension of a macro-ion on the dilution line was kept constant over the polymer concentration range covered, utilizing our treatment as previously reported. A parameter, m, introduced in the method of dilution was known to be not far from the ratio of activity coefficients of polymeric and simple electrolytes. The “effective ionic strength” proposed by Pals and Hermans was suggested to be a significant quantity in dilute solutions of polyelectrolytes.