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DS: Fachverband Dünne Schichten

DS 12: Poster

DS 12.39: Poster

Mittwoch, 29. März 2023, 17:00–19:00, P3

Characterization of the interaction of acrylic polymers with gold and silica surfaces — •Sascha Jan Zimmermann, Philipp Moritz, and Wolfgang Maus-Friedrichs — Clausthal Centre of Material Technology, Clausthal University of Technology, Agricolastr. 2, 38678 Clausthal-Zellerfeld

Adhesives play a key role in the 21st century. In particular, hybrid material composites can be joined in this way while saving weight. To advance this technology, a fundamental understanding of adhesive interactions, particularly to metal (oxide) substrates, is required.

In order to investigate these interactions, nanometer thin planar polymer films were deposited on the model substrates of silicon oxide and gold. This was done for the polymers poly(methyl methacrylate) and poly(glycidyl methacrylate) applying a spin coating process. X-ray photoelectron spectroscopy (XPS), Metastable Impact Electron Spectroscopy (MIES) and Ultraviolet photoelectron spectroscopy (UPS) were used to analyze the chemical interactions at the interface.

In the case of PMMA, the XPS measurements show the presence of a caboxylate ion, which indicates probable ionic interactions. A varying chemical shift and the changes in the MIES spectra indicate additional hydrogen bonds. In the case of PGMA, no interactions were detected by the applied measurement methods.