Monte Carlo Study of Coulombic Criticality in Polyelectrolytes

G. Orkoulas, Sanat K. Kumar, Athanassios Z. Panagiotopoulos

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


The role of charges in determining the water solubility of polyelectrolytes, a question of considerable relevance to biology, is currently unresolved. We use computer simulations to study the purely Coulombic phase separation of flexible polyelectrolytes with monovalent counterions in an athermal solvent. In agreement with recent theories we find that the critical temperature for this transition increases with chain length, but that the critical density remains unchanged. We therefore stress that the phase behavior of polyelectrolytes is qualitatively different from uncharged polymers, where the critical density decreases towards zero for long chains.

Original languageEnglish (US)
Pages (from-to)4
Number of pages1
JournalPhysical review letters
Issue number4
StatePublished - 2003

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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