Phase equilibria and charge fractionation in polydisperse polyelectrolyte solutions

Details Phase equilibria and charge fractionation in polydisperse polyelectrolyte solutions Phase equilibria and charge fractionation in polydisperse polyelectrolyte solutions

2004-06-09

arxiv.org/abs/cond-mat/0406218v3

Journal of Polymer Science: Part B: Polymer Physics, Vol. 45, 3003--3009 (2007)

Physics

Condensed Matter

Soft Condensed Matter

This paper has been withdrawn by the authors, as required by Macromolecules for reasons of publication

Scientific paper

10.1002/polb

A new type of phase separation in the polyelectrolyte solutions consisting of several types of charged macromolecules differing in their degree of ionization is predicted via a general thermodynamic consideration. We show that even a small difference in the degree of ionization of otherwise equivalent components results in their spatial separation occurring upon decreasing the temperature much earlier than precipitation of the components from the solution. Some implications of charge fractionation in biological processes are discussed.

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