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SYBM: Symposium Bioinspired Materials

SYBM 1: Symposium Bioinspired Materials

SYBM 1.3: Hauptvortrag

Donnerstag, 29. März 2007, 10:30–11:00, H1

Bio-Inspired Hybrid Materials from Block Copolymer Assemblies and Nanoparticle Co-assemblies — •U. Wiesner — Department of Materials Science & Engineering, Cornell University, Ithaca, NY 14853-1501, USA

The study of bio-inspired block copolymer based self-assembly (bottom-up) approaches to multifunctional polymer-inorganic hybrid materials is an exciting emerging research area interfacing solid state and soft materials and offering enormous scientific and technological promise. By choice of the appropriate synthetic polymer blocks as well as nanoparticles unprecedented morphology control down to the nanoscale is obtained. Tailoring of the polymer-inorganic interface is of key importance. The structures generated on the nanoscale are a result of a fine balance of competing interactions, a typical feature of complex biological systems. The potential for new multifunctional materials lies in the versatility of the polymer chemistry as well as that of the inorganic chemistry that can be exploited in the materials synthesis. In the present contribution the synthesis and characterization of nanostructued hybrid materials will be presented with potential applications ranging from microelectronics to nanobiotechnology. In all cases cooperative self-assembly of organic and inorganic species is induced by amphiphilic macromolecules, either block copolymers or extended amphiphilic dendrons, which are blocked species with one block being highly branched. Besides amorphous and crystalline oxide materials novel systems toward high temperature SiCN and SiC structures are introduced.