Regensburg 2019 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 38: Polymer Networks and Elastomers
CPP 38.5: Vortrag
Mittwoch, 3. April 2019, 12:30–12:45, H18
Magneto-active elastomeric (MAE) films and their properties — •Sofia Kantorovich1,2, Elena Minina1,2, Elena Kramarenko3, and Pedro Sánchez1,2 — 1University of Vienna — 2Ural Federal University — 3Moscow State University
Due to advances in synthesis, it is nowadays possible to prepare thin layers of elastomers with relatively high loading of magnetic particles. Such layers show a dramatic change of the hydrophobicity when an external magnetic field is applied. This effect is a consequence of the conventional chain formation of magnetic particles aligned along the magnetic field that causes not only the matrix deformation of the layer, but also roughens its surface. We study structural, magnetic and mechanical properties of such MAE layers by means of MD computer simulations. We develop a model of a MAE layers that captures the dependence of its surface roughness on the elastic properties of the polymer matrix and the magnetic interactions [1]. To examine elastic properties of these layers we consider them under action of an external magnetic field of different strength. We observe that the magnetic field stiffens the layer making it more robust to deformations. [1] P.Sanchez et al, Soft Matter 2018.