Overcharging, charge inversion and reentrant condensation: Using highly-charged polyelectrolytes in tetravalent salt solutions as an example of study

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dc.creatorHsiao, Pai-Yi
dc.date2008-04-20
dc.date2008-05-10
dc.date.accessioned2026-07-07T09:46:32Z
dc.date.available2026-07-07T09:46:32Z
dc.descriptionWe study salt-induced charge overcompensation and charge inversion of flexible polyelectrolytes via computer simulations and demonstrate the importance of ion excluded volume. Reentrant condensation takes place when the ion size is comparable to monomer size, and happens in a middle region of salt concentration. In a high-salt region, ions can overcharge a chain near its surface and charge distribution around a chain displays an oscillatory behavior. Unambiguous evidence obtained by electrophoresis shows that charge inversion does not necessarily appear with overcharging and occurs when the ion size is not big. These findings suggest a disconnection of resolubilization of polyelectrolyte condensates at high salt concentration with charge inversion.
dc.descriptionletter (11 pages, 4 figures), accepted for publication in jpcb
dc.identifierhttps://arxiv.org/abs/0804.3201
dc.identifierhttp://arxiv.org/abs/0804.3201
dc.identifierJ. Phys. Chem. B (Letters) 112 (2008) 7347
dc.identifierdoi:10.1021/jp800331b
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/163565
dc.subjectSoft Condensed Matter
dc.subjectStatistical Mechanics
dc.titleOvercharging, charge inversion and reentrant condensation: Using highly-charged polyelectrolytes in tetravalent salt solutions as an example of study
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