Berlin 2008 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 34: POSTERS Polymerphysics
CPP 34.4: Poster
Donnerstag, 28. Februar 2008, 17:00–19:30, Poster A
Structure formation upon sputtering of iron in diblock copolymer film with and without maghemite nanoparticles - an in-situ GISAXS study — •Mottakin M. Abul Kashem1, Gunar Kaune1, Alexander Diethert1, Weinan Wang1, Kai Schlage2, Sebastian Couet2, Ralf Röhlsberger2, Stephan V. Roth2, and Peter Müller-Buschbaum1 — 1TU München, Physik-Department LS E13, James-Franck-Str. 1, 85747 Garching, (Germany) — 2HASYLAB at DESY, Notkestr. 85, 22603 Hamburg (Germany)
Sputtering technique can be used to incorporate metal particle fillers into a self-assembled block copolymer film to get a nanocomposite. We have investigated the structures formed during sputtering of iron on the diblock copolymer films with and without iron oxide nanoparticles. We used cylindrical structure forming diblock copolymer poly-styrene-block-poly-methyl methacrylate and maghemite nanoparticles to produce the films. The metal iron was sputtered on to the surface of nanostructured film and the structure formation was recorded and investigated with in-situ grazing incident small angle X-ray scattering (GISAXS) technique. The surface topography of the composite films before and after sputtering is investigated by atomic force microscopy (AFM). The presence of nanoparticles in the film act as a nucleation site which leads to a different type and size of structures with compared to the film without nanoparticles upon sputtering of iron. Funding by the CompInt network is acknowledged.