Regensburg 2007 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

SYPE: Symposium Polyelectrolytes

SYPE 1: Polyelectrolytes Poster

SYPE 1.2: Poster

Mittwoch, 28. März 2007, 16:00–18:30, Poster B

Preparation and characterization of nanocomposite films with switch effect — •W. Wang¹, A. Laschewsky², and P. Müller-Buschbaum¹ — ¹TU München, Physik - Department E13, James-Franck-Str. 1, D-85747 Garching, Germany — ²Potsdam Universität, Mathematisch-Naturwissenschaftliche Fakultät, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam-Golm, Germany

Nanostructures based on polymeric materials are of growing interest for numerous applications in electric and optic areas. The goal of this study is the production and characterization of nano-structured thin films with switch effect from encasing inorganic-organic hybrid materials. The central emphasis is to prepare the films with good thermal-mechanical and chemical characteristics. The basis of the production is a sol-gel template based synthesis of ceramic metallic oxide nanoparticles, with which amphiphile diblockpolymer is used as matrix. In the first step, the polymer matrix - poly(styrene-block-N-isopropylacrylamide), which is synthesized by RAFT polymerization, is deposited on the pre-cleaned, oxide covered silicon (100) substrates as well as glass slides by the spin coating technique. As the performance is strongly influenced by the morphology of the films, atomic force microscopy (AFM) is routinely used to monitor the surfaces of polymer films giving rise to a real-space visualization of the surface topography. A meaningful statistical analysis of film thickness and roughness is advantageously performed with conventional X-ray reflectivity measurement.