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Regensburg 2010 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 43: Colloids and Complex Liquids II

CPP 43.5: Talk

Thursday, March 25, 2010, 15:00–15:15, H39

Monte Carlo simulations of colloid-polymer mixtures in cylindrical confinement — •Alexander Winkler, Peter Virnau, and Kurt Binder — Institut für Physik, Johannes Gutenberg-Universität Mainz

We investigate the Asakura-Oosawa model in cylindrical confinement with Monte Carlo simulations. On the one hand side the system can be regarded as a model for nanopores, on the other hand the system exhibits an interesting "phase behavior" due to its quasi-one-dimensional character. At high polymer reservoir packing fractions, the tube is either filled with liquid or gas. When we approach a "pseudo-critical point" (at reservoir packing fractions above the critical value of the bulk) several interfaces appear and the tube contains both liquid and gas phases, which are studied by extensive Free Energy calculations.

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