Frictional properties of dilute polymer solutions. II. The effect of preaveraging

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Abstract
Our development of the Debye−Bueche theory for the frictional properties of dilute polymer solutions is continued. A simplified version of the mean field theory is introduced that involves a preangular average (PAA) of the hydrodynamic interaction. A comparison is made between the exact mean field theory and the simplified PAA theory for the case of a uniform sphere and of an infinitesimal shell segment distribution.