Russo, J.Tavares, JoseTeixeira, PauloGama, MargaridaSCIORTINO, Francesco2013-02-162013-02-162011-02-25RUSSO, J.; TAVARES, J. M.; TEIXEIRA, P. I. C.; DA GAMA, M. M. Telo; SCIORTINO, F. - Reentrant Phase Diagram of Network Fluids. Physical Review Letters. ISSN 0031-9007. Vol. 106, n.º 8 (2011).0031-9007http://hdl.handle.net/10400.21/2234We 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.engDirectional Attractive ForcesDipolar Hard-SpheresMonte-CarloThermodynamicsParticlesSystemsPatchyjournal article