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CPP: Chemische Physik und Polymerphysik

CPP 11: POSTER Disperse Polymer Systems

CPP 11.16: Poster

Tuesday, March 28, 2006, 17:00–19:00, P3

Tuning the microstructure of polymer-metal nanocomposites prepared by pulsed laser deposition — •Johanna Röder, Jörg Faupel, and Hans-Ulrich Krebs — Institut für Materialphysik, Universität Göttingen, Friedrich-Hund-Platz 1, D-37077 Göttingen

Nowadays polymer-metal nanocomposites have a wide range of applications. For instance metal clusters embedded in polymers possess interesting optical properties. Heading towards such new materials with tailored properties, it is important to understand and influence their microstructure. Here the samples were prepared in a one-step process by pulsed laser deposition, using poly (methyl methacrylate) (PMMA) as matrix. The embedded clusters were mainly characterized by TEM. The effects of polymer-cross-linking on the growth of Ag will be presented and discussed, as well as the microstructural changes after deposition of nucleation seeds in the form of less diffusing metals like Nb and Cu. The consequences of the different microstructures on the optical properties are shown.