Density Dependence of the Viscosity and Excess Volume of Aqueous Solutions of Polyvinylpyrrolidone

Massoumeh Foroutan

School of Chemistry, University College of Science, University of Tehran, Tehran, Iran.

A model for the estimation of density dependence of the viscosity of aqueous solutions of polyvinylpyrrolidone is presented. The proposed representation of the viscosity of PVP solutions expresses the viscosity as a function density and temperature. From the density data, the excess molar volumes of this system are also calculated.

Key words: Density, Viscosity, Excess volume, Polyvinylpyrrolidone, Aqueous solution.