Temperature (de)activated patchy colloidal particles
D. de las Heras, and M. M. Telo da Gama
J. Phys.: Condens. Matter, 28, 244008 , (2016) DOI: 10.1088/0953-8984/28/24/244008
Full text: journal, pdf
Abstract:
We present a new model of patchy particles in which the interaction sites can be activated or deactivated by varying the temperature of the system. We study the thermodynamics of the system by means of Wertheim's first order perturbation theory, and use Flory-Stockmayer theory of polymerization to analyse the percolation threshold. We find a very rich phase behaviour including lower critical points and reentrant percolation. Possible extensions to inhomogeneous situations in the context of Density Functional Theory are discussed.
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