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10–11 Dec 2019
Marriott
Europe/Berlin timezone

Monitoring selectivity of gold cluster growth/formation on antifouling-relevant zwitterionic thin block copolymer coatings

11 Dec 2019, 13:30
3h
Marriott Conference room - Munich (Marriott)

Marriott Conference room - Munich

Marriott

Berliner Str. 93 80805 München Germany
300
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Board: 100
Poster Soft Matter Poster session

Speaker

Dr Apostolos Vagias (Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, 85748 Garching, Germany)

Description

Polysulfobetaine (PSB) films serve as promising antifouling coatings [1]. In addition, metal-coated thin polymer films hold also tremendous potential for antifouling and antibacterial applications [2]. However, the exact limit to how much one may tune antifouling by means of altering the block copolymer nanostructure with a metal sputtered on top of the polymer remains practically unexplored. Schwartzkopf et al. [3] have shown that sputtered gold can exhibit wetting selectivity with different affinities in each constituent of a PS-b-PEO block copolymer film. The correlation between gold growth and affinity to the particular polymer phase of the PSB copolymer structure and its impact on antifouling efficiency remain elusive. By in-situ microfocus GISAXS (μGISAXS) we present the nanostructure evolution of gold film growth on thin (<100 nm) polymer films. We compare poly (N-isopropyl methacrylamide) (PNIPMAM) homopolymer, PNIPMAM-b-PSB diblock copolymer and a PSB homopolymer. We inspect for potential selectivities during gold sputtering on these polymer films and potential correlation between polymer-metal nanocomposite structure to antifouling efficiency.

[1] A. Laschewsky, A. Rosenhahn, Langmuir 35 (5), 1056 (2019)
[2] J. Ren, P. Han, H. Wei and L. Jia, ACS Appl. Mater.Interfaces 6, 3829 (2014)
[3] M. Schwartzkopf et al., ACS Appl. Mater. Interfaces 9, 5629 (2017)

Primary authors

Dr Apostolos Vagias (Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, 85748 Garching, Germany) Simon Schaper (TU München, Physik-Department, Lehrstruhl für Funktionelle Materialien) Lucas Kreuzer (TU München, Physik Department, E13) Wei Chen (Technische Universität München) Suzhe Liang (Physical Department, TUM) Mr Marc Gensch (DESY) Pallavi Pandit (DESY) Matthias Schwartzkopf (DESY) Prof. Stephan Roth (DESY) Mr Jonas Drewes (CAU zu Kiel, Institut für Materialwissenschaft, LS Materialverbunde, Kiel) Mr Niko Carstens (CAU zu Kiel, Institut für Materialwissenschaft, LS Materialverbunde,Kiel) Dr Thomas Strunskus (CAU zu Kiel, Institut für Materialwissenschaft, LS Materialverbunde) Prof. Franz Faupel (CAU zu Kiel, Institut für Materialwissenschaft, LS Materialverbunde) Prof. André Laschewsky (Institut für Chemie, Universität Potsdam, and Fraunhofer-Institut für Angewandte Polymerforschung, Potsdam-Golm, ) Peter Müller-Buschbaum (TU München, Physik-Department, LS Funktionelle Materialien)

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