8th Liquid Matter Conference September 6-10, 2011 Wien, Austria ...

P5.30Wed 711:10-14:00Collisional formulas for molecular dynamics of patchycolloidsAgnieszka Chrzanowska 1 and Pawel Karbowniczek 11 Institute of Physics Kraków University of Technology, Podchorazych 1, 30-084, Kraków,PolandAssociating fluids are fascinating state of matter. Their macroscopic peculiar properties emergefrom the molecular arrangement and interactions. Majority of the models used to describe suchsystem comprise as well density functional theories as Monte Carlo simulation. Molecular Dynamicsseems to be somewhat difficult, most probably because of the noncentral interactions ofthe parts capable of creating bonds. In the case of colloids one of the simplest models considersobjects that are large spheres whose surface is decorated with the interactive patches. In the presentwork we show the exact rules for the momentum exchange and the resulting angular momentumundergoing within a collision of two patches interacting through the square well potential. Theseinteractions allows to construct MD program and, further, investigations of the diffusion, velocitycorrelations and other dynamical properties.30