Dresden 2009 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 15: POSTERS Dynamics and Diffusion
CPP 15.11: Poster
Dienstag, 24. März 2009, 14:00–16:30, P3
Diffusion in polymer networks of hydrogels — •fatemeh tabatabaei1, olaf lenz2, and christian holm1 — 1Institute für Computationalphysik, Universität Stuttgart, 70569 Stuttgart, Germany — 2Max-Planck-Institut für Polymerforschung, 55021 Mainz, Germany
In this work we consider the diffusion behavior of a simple spherical tracer particle in polymer networks of hydrogels. There have been hints detained via Fluorescence Correlation Spectroscopy on FCS tracer particles in a hydrogel. We investigate, by means of MD simulation, the diffusion properties of a tracer particle in a confined geometry of a polymer network. We present single model that shows anomalous diffusion, namely if the tracer particle is confined to follow the coiled polymer contour length. As an extension we investigate the diffusion property of a single tracer particle interacting with the polymer via simple Lennard-Jones potential.