Abstract:
We present a simple model for the possible mechanism of appearance of attraction between like charged polyions inside a polyelectrolyte solution. The attraction is found to be short ranged, and exists only in the presence of multivalent counterions. It is produced by the correlations in layers of condensed counterions surrounding each polyion and is only weakly temperature dependent. We find the attraction to be maximum at zero temperature and dimish as the temperature is raised. The attraction is only possible if the number of condensed counterions exceeds the threshold, \(n > Z/2\alpha \), where α is the valence of counterions and Z is the polyion charge.
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Received 10 March 1999 and Received in final form 20 April 1999
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Arenzon, J., Stilck, J. & Levin, Y. Simple model for attraction between like-charged polyions. Eur. Phys. J. B 12, 79–82 (1999). https://doi.org/10.1007/s100510050980
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DOI: https://doi.org/10.1007/s100510050980