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Regensburg 2022 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 20: General Session to the Symposium: Interplay of Substrate Adaptivity and Wetting Dynamics from Soft Matter to Biology (joint session CPP/DY)

CPP 20.4: Talk

Wednesday, September 7, 2022, 10:15–10:30, H39

Mixed grafted homopolymer and diblock copolymer functional brush layers upon humidity alterations: nanoscale morphology and transformations — •Apostolos Vagias1, Theodore Manouras2, Eleftherios Koufakis2,3, Peixi Wang4, Marcell Wolf1, Fabian A. C. Apfelbeck4, Sigrid Bernstorff5, Maria Vamvakaki2,3, and Peter Müller-Buschbaum1,41Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, 85748 Garching, Germany — 2Foundation for Research and Technology (F.O.R.T.H.) Hellas, Institute of Electronic Structure and Laser,700 13 Heraklion, Crete, Greece — 3Department of Materials Science and Technology, University of Crete, 700 13 Heraklion, Crete, Greece — 4Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, 85748 Garching, Germany — 5Elettra Sincrotrone Trieste S.C.p.A., Basovizza, 34149 Trieste, Italy

Using in situ grazing-incident small-angle X-ray scattering (GISAXS) measurements during water vapor uptake, we study the nanostructure morphology in the dry state, during vapor swelling and in the fully swollen state, for thin (<100nm) films of poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) and poly(fluoroalkyl methacrylate) (POFPMA) homopolymer and PDMAEMA-b-POFPMA block copolymer dual functional, bactericidal and antifouling, brushes. Our surface energy and swelling studies, stress on the role alkyl chain length, charged groups and brush topology in morphology, for the brush functionality.

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