Determination of molecular weight of polyvinylpyrrolidone. II

Abstract

Abstract Additional polyvinylpyrrolidone samples of great homogeneity have been prepared, and their intrinsic viscosity and molecular weight (by light scattering) have been determined in water and chloroform. In view of the new results the previous data were reinterpreted particularly with respect to the shift in K (in [η] = KM α ) with homogeneity. All data were evaluated by objective statistical techniques and revised intrinsicviscosity molecular weight equations are proposed.