Nagasawa and Eguchis question the general validity of such eliminations. They find that, for sodium polystyrene sulfonate. the Mandelkern-Flory coefficient, which desczibes viscosity and sedimentation equations combined, varies with the ionic strength. The authors consider the viscosity equation rel
Limiting sedimentation and diffusion coefficients of polyelectrolytes. The charge effect
โ Scribed by R. Varoqui; A. Schmitt
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1972
- Tongue
- English
- Weight
- 842 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0006-3525
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โฆ Synopsis
General expressions relating the sedimentation and diffusion constants of polyelectrolytes to the friction properties of ionic components in multicomponent systems have been derived. A quantitative explanation of the charge effect with respect to the addition of a low-molecular-weight salt is given; special attention is laid on limiting laws according to the saltrto-polymer concentration ratio. The theory is applied to a simple model, the infinitely long rod-like model, to illustrate the peculiar aspect of the charge effect in presence of salt.
๐ SIMILAR VOLUMES
The diffusive modes of polyions in moderate and low ionic-strength media are determined by a complex set of interactions which involve solvent, polyion, counterion, and co-ion particles. In an attempt to elucidate the relative effects of these interactions, Kowblansky and Zema' reported quasielastic
In this investigation surface force, X-ray photoelectron spectroscopy and ellipsometry techniques have been used to study the adsorption of a low-charge-density cationic polyelectrolyte on negatively charged surfaces. It is shown that the low cationicity of this polyelectrolyte induces an adsorption