Possibility of a master plot for material functions of high-polymer solutions

A new systematic method has been developed for estimating rheological properties (such as relaxation time, viscosity, primary normal stress difference) for various polymer solutions form the zero-shear-rate specific viscosity and a dimensionless shear rate.A linear relation has been found between the relaxation time and the zero-shear-rate specific viscosity on a double-logarithmic plot, and a new master plot for the primary normal stress difference has been established. In addition the applicability of the FENE-P dumbbell model to high-polymer solutions is discussed.