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On the limiting sedimentation coefficients of polyelectrolytes

โœ Scribed by Z. Alexandrowicz; Ezra Daniel

Publisher
Wiley (John Wiley & Sons)
Year
1968
Tongue
English
Weight
194 KB
Volume
6
Category
Article
ISSN
0006-3525

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โœฆ Synopsis

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 reliable and blame the sedimentation for the discrepancy. Elsewhere, however, Takahashi et al.,6 working with the same system, find that at different ionic strengths the Flory coefficient determined from viscosity and light scattering does not remain const,ant either. The subject appears therefore to be open t o a further investigation.

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