Berlin 2018 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 5: Polymer Networks and Elastomers I
CPP 5.9: Vortrag
Montag, 12. März 2018, 12:00–12:15, PC 203
Modeling magnetic elastomers as coatings with controllable hydrophobicity — •Pedro A. Sanchez1, Elena Minina1, Sofia S. Kantorovich1,2, and Elena Yu. Kramarenko3 — 1Computational Physics, University of Vienna, Vienna, Austria — 2Ural Federal University, Ekaterimburg, Russia — 3Moscow State University, Moscow, Russia
Magnetic elastomers are hybrid materials consisting of a soft matrix of polymers with a high volume fraction of embedded magnetic micro- and/or nanoparticles. These materials are elastic enough to experience strong structural changes as a response to external magnetic fields. This makes them promising candidates for a broad range of applications.
One particularly interesting application of magnetic elastomers is their use as thin coatings that provide a fine control of the hydrophobicity of their free surface, as a consequence of the strong changes in its roughness induced by the application of proper external fields.
In this contribution we present a minimal computer simulation model of a magnetic elastomer thin coating that captures the dependence of its surface roughness on the elastic properties of the polymer matrix and the magnetic interactions. This modeling approach may contribute to the optimum design of these systems.