Abstract:The intrinsic viscosity, [eta], of certain polymer-solvent systems, such as alkanes in benzene, are "anomalous" in the sense that [eta] for low molecular weight fractions are low and in certain cases negative (Dewan, K. K.; Bloomfield, V. A.; Berget, P. G.; J. Phys. Chem. 1974, 75, 3120). In this work, the theory of the viscosity of a dilute suspension of macromolecules at low shear is formulated that accounts for possible solute-solvent interactions. In doing so, we show that negative intrinsic viscosities ar… Show more
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