Polyelectrolytes pp 241-260 | Cite as
Sedimentation and Diffusion of Polyelectrolytes in the Presence of Added Salt
Abstract
The purpose of the study on transport phenomena of polyelectrolytes may be to discuss the response of both the polymeric ion and the counter-ions in solutions to externally applied fields: those considered include the electric field, centrifugal field, shearing force and the chemical potential gradient. That is, sedimentation, diffusion, viscosity, electrophoresis, electric conductivity, etc. may be included in the transport phenomena of linear polyelectrolytes. Among them, here we shall discuss sedimentation and diffusion which both are closely related. Just as in all other phenomena, it is convenient to divide our discussion into two problems; the concentration dependence of transport coefficients, which is mainly concerned with the interaction between two polymeric ions, and the limiting magnitudes of sedimentation and diffusion coefficients, which are determined mainly by the radius of gyration of polymeric ion in an infinitely large volume of solvent.
Keywords
Intrinsic Viscosity Infinite Dilution Virial Coefficient Hydrodynamic Interaction Sedimentation CoefficientPreview
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