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CPP: Chemische Physik und Polymerphysik
CPP 11: POSTER Disperse Polymer Systems
CPP 11.6: Poster
Dienstag, 28. März 2006, 17:00–19:00, P3
Magnetic particles in supported polymer nano-structures — •M.M. Abul Kashem1, S.V. Roth2, and P. Müller-Buschbaum1 — 1TU München, Physik-Department E13, James-Franck-Str. 1, D-85747 Garching, Germany — 2HASYLAB at DESY, Notkestr. 85, D-22603 Hamburg, Germany
Polymer nano-structures with incorporated magnetic particles mark a new class of composite materials. Composite structures are formed from a P(S-b-I) matrix and a magnetic filler (metal oxide). The great potential of these composites derives from the substantial modification of the thermal, mechanical and electrical characteristics of polymers which results when the polymer is combined with a filler. The polymer nano-structures, acting as a template, enable a completely new arrangement of the particles which is inaccessible with common magnetic materials. The controlled incorporation of the particles results from the presence of a hairy polymer layer covering the magnetic particles. On top of solid supports the polymer layers including particles are prepared by spin-coating. The nano-structures are created by additional preparation steps by an interplay of dewetting and micro-phase separation. Within this self-assembly process the polymer matrix as well as the magnetic particles are ordered. The resulting structures are presented.