Intrinsic viscosity and friction coefficient of permeable macromolecules in solution

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Wiegel, F.W. and Mijnlieff, P.F. (1977) Intrinsic viscosity and friction coefficient of permeable macromolecules in solution. Physica A, 89 (2). pp. 385-396. ISSN 0378-4371

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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.
Item Type:Article
Copyright:© 1977 Elsevier Science
Link to this item:http://purl.utwente.nl/publications/68015
Official URL:http://dx.doi.org/10.1016/0378-4371(77)90112-1
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