Thermodynamics of polyelectrolyte solutions. An empirical extension of the manning theory to finite salt concentrations

✍ Scribed by J. D. Wells

• Publisher: Wiley (John Wiley & Sons)
• Year: 1973
• Tongue: English
• Weight: 247 KB
• Volume: 12
• Category: Article
• ISSN: 0006-3525
• DOI: 10.1002/bip.1973.360120202

✦ Synopsis

Abstract

The range of application of the Manning theory of polyelectrolyte solutions (J. Chem. Phys., 51, 924 (1969)) is extended to finite concentrations of simple electrolyte by the empirical superposition of excess free energies arising from (i) interactions between mobile ions and polyions and (ii) mutual interactions between mobile ions. A comparison of published results with the modified theory shows excellent agreement over a wide range of concentrations. Results for a polyelectrolyte of low charge density suggest that the effective inter‐charge spacing may be less than that of the fully extended polyion.