Dresden 2009 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 19: Focus: Magnetic Soft Matter I

CPP 19.5: Vortrag

Dienstag, 24. März 2009, 11:30–11:45, ZEU 222

Magnetic Capsules and Pickering Emulsions — Andreas Kaiser, Robert Abraham, and •Annette Schmidt — Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität, Universitätsstr. 1, 40225 Düsseldorf, Germany

In our work we present results on magnetic Pickering emulsions, using superparamagnetic hybrid nanoparticles as susceptible stabilizers. By using the polymer shell of surface grafted iron oxide cores as adaptable solution promoter in a *-solvent, thermoreversible magnetic fluids are obtained that are mixed with water, leading to stable oil in water (o/w) emulsions. Detailed investigations of the involved phase behaviour will be presented together with investigations on the long-term stability of the magnetic capsules towards temperature and in magnetic fields. Magnetic Pickering emulsions are of interest for advanced drug delivery and release systems.