Berlin 2012 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 17: Poster: Crystallisation, Nucleation and Self assembly
CPP 17.12: Poster
Dienstag, 27. März 2012, 18:15–20:15, Poster A
Low temperature sol-gel synthesis of polymer/titania hybrid films based on custom made poly(3-alkoxy thiophene) — •Martin A. Niedermeier1, Monika Rawolle1, Phillip Lellig2, Volker Körstgens1, Eva M. Herzig1, Adeline Buffet3, Stephan V. Roth3, Jochen S. Gutmann4, Thomas Fröschl5, Nicola Hüsing5, and Peter Müller-Buschbaum1 — 1TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching, Germany — 2Max-Planck-Institut für Polymerforschung, 55128 Mainz, Germany — 3HASYLAB at DESY, 22603 Hamburg, Germany — 4Universität Duisburg-Essen, Institut für Physikalische Chemie, 45141 Essen, Germany — 5Universität, Salzburg, FB Materialforschung und Physik, 5020 Salzburg, Austria
A low temperature route to directly obtain polymer/titania hybrid films is presented. For this, a poly(3-alkoxy thiophene) is synthesized and used in a sol-gel process together with an ethylene glycol modified titanate (EGMT), as the titania precursor. Atomic force microscopy and scanning electron microscopy reveals that the poly(3-alkoxy thiophene) acts as the structure directing agent for the titania matrix and still maintains a high degree of crystallinity, as shown with grazing incidence wide angle X-ray scattering. UV/Vis measurements show a similar absorption behavior to P3HT with an absorption maximum around 500 nm and the typical UV absorption behavior of rutile titania.