Rheological Studies on Blends of Rodlike and Flexible Chain Polymers

摘要

Rheological studies are reported on blends or rodlike and flexible chain polymers in solution. All data are for composition for which the components are fully miscible. A principal effect is a substantial enhancement that may occur in the viscosity at low shear rate. The reduced distribution of relaxation times normalized for the change in rheology is relatively independent of the concentration of the flexible chain polymer. The data are discussed in the context of a single-integral constitutive relation of the BZK type. Reprints. (jes)