Reentrant Phase Diagram of Network Fluids
Author(s) -
John Russo,
J. M. Tavares,
P. I. C. Teixeira,
M. M. Telo da Gama,
Francesco Sciortino
Publication year - 2011
Publication title -
physical review letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.688
H-Index - 673
eISSN - 1079-7114
pISSN - 0031-9007
DOI - 10.1103/physrevlett.106.085703
Subject(s) - reentrancy , phase diagram , statistical physics , chaining , monte carlo method , physics , context (archaeology) , perturbation theory (quantum mechanics) , condensed matter physics , phase (matter) , mathematics , quantum mechanics , psychology , paleontology , statistics , psychotherapist , biology
We introduce a microscopic model for particles with dissimilar patches which displays an unconventional "pinched" phase diagram, similar to the one predicted by Tlusty and Safran in the context of dipolar fluids [Science 290, 1328 (2000)]. The model-based on two types of patch interactions, which account, respectively, for chaining and branching of the self-assembled networks-is studied both numerically via Monte Carlo simulations and theoretically via first-order perturbation theory. The dense phase is rich in junctions, while the less-dense phase is rich in chain ends. The model provides a reference system for a deep understanding of the competition between condensation and self-assembly into equilibrium-polymer chains
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