| Issue |
Europhys. Lett.
Volume 41, Number 2, January II 1998
|
|
|---|---|---|
| Page(s) | 123 - 128 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i1998-00119-4 | |
| Published online | 01 September 2002 | |
Liquid-state theory of charged colloids
Instituto de Física, Universidade Federal
do Rio Grande do Sul, Caixa Postal 15051, CEP 91501-970,
Porto Alegre, RS, Brazil
Received:
16
June
1997
Accepted:
27
November
1997
A simple theory of the fluid state of a charged colloidal suspension is proposed. The full free energy of a polyelectrolyte solution is calculated. It is found that the counterions condense onto the polyions forming clusters composed of one polyion and n counterions. The distribution of cluster sizes is determined explicitly. In agreement with the current experimental and Monte Carlo results, no liquid-gas phase separation was encountered.
PACS: 05.70.Ce – Thermodynamic functions and equations of state / 61.20.Qg – Structure of associated liquids: electrolytes, molten salts, etc / 61.25.Hq – Macromolecular and polymer solutions; polymer melts; swelling
© EDP Sciences, 1998
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