Intrinsic viscosity and friction coefficient of permeable macromolecules in solution

F.W. Wiegel and P.F. Mijnlieff

Physica A: Statistical Mechanics and its Applications, 1977, vol. 89, issue 2, 385-396

Abstract: A polymer molecule in solution is treated as a porous sphere with a spherically symmetric permeability distribution. Solvent motion in and around this sphere is described by the Debije- Brinkman equation (Navier-Stokes equation and Darcy equation combined). The model allows a straightforward calculation of the frictional properties of a polymer in shear flow (intrinsic viscosity) and in translation (friction coefficient). Calculations have been carried out for a radial dependence of the permeability of the form k(r)=K exp(Qr2). The calculations provide us with 0 detailed information about the solvent flow through and around the macromolecular coil.

Date: 1977
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:89:y:1977:i:2:p:385-396

DOI: 10.1016/0378-4371(77)90112-1

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