Abstract
Starting from a set of coupled Langevin equations describing the dynamics of flexible (Gaussian) polymer chains in the presence of hydrodynamic interactions and undergoing a weak shear flow, the stress tensor is determined using Kramers formula. With the aid of renormalization group techniques the steady state intrinsic viscosity is extracted toO(ɛ) (ɛ≡4−d,d being the spatial dimensionality) and to lowest nontrivial order in the flow strength. Within the preaveraging approximation we find a numerically small effect of shear thinning.
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Schaub, B. Calculation of the intrinsic viscosity for dilute polymer solutions undergoing shear flow. Z. Physik B - Condensed Matter 81, 291–297 (1990). https://doi.org/10.1007/BF01309361
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DOI: https://doi.org/10.1007/BF01309361