Dresden 2009 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 42: Polymer Physics IV

CPP 42.1: Vortrag

Freitag, 27. März 2009, 10:30–10:45, ZEU 160

A Molecular Dynamics Study of Polymers in Confinement — •Julia Zabel and Alexander Blumen — Albert-Ludwigs-Universität Freiburg, Deutschland

The spin coating technique is a common method to produce thin polymer films. Experimental physicists are concerned that the extremely fast evaporation of the solvent leaves the polymers in an unequilibrated state. The behavior of these films in dewetting experiments leads to the assumption that the chains are under residual stress. Using Molecular Dynamics simulations we study the effects of confinement on polymer entanglement and the interdiffusion for two chains in a box. We also look at different geometric confinements such as pores and study the influence of the geometry on the dynamics. These results grant us a deeper understanding of the residual stress postulated by dewetting experiments with spin coated films.