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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 8: Poster Session III

CPP 8.13: Poster

Mittwoch, 29. September 2021, 17:30–19:30, P

Multi-dimensional morphology control for PS-b-P4VP templated mesoporous iron (III) oxide thin films — •Shanshan Yin¹, Wei Cao¹, Qing Ji², Yajun Cheng², Lin Song³, Nian Li¹, Christian L. Weindl¹, Matthias Schartzkopf⁴, Stephan V. Roth^{4, 5}, and Peter Müller-Buschbaum^{1, 6} — ¹Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, 85748 Garching, Germany — ²Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China — ³Northwestern Polytechnical University, Xi’an 710072, China. — ⁴DESY, Notkestr. 85, 22603 Hamburg, Germany — ⁵Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden — ⁶Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, 85748 Garching, Germany

We systematically investigate the synthesis of polystyrene-block-poly(4-vinylpyridine) templated *-Fe2O3 thin films by changing the solvent category (DMF or 1,4-dioxane) and the polymer-to-FeCl3 ratios. DMF/1,4-dioxane mixtures with different component ratios are also prepared for revealing the effect of the solvent selectivity on the thin film morphology. The structure transition mechanism of the thin films is explained by the preferential affinity and the small-molecule surfactant micelles theory.