Regensburg 2013 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 8: Poster: New Instruments and Methods

CPP 8.12: Poster

Montag, 11. März 2013, 17:30–19:30, Poster C

Microfluidics and microGISAXS - nanoscopic in situ characterization at the solid-liquid interface — •Volker Körstgens¹, Martine Philipp¹, Stephan V. Roth², and Peter Müller-Buschbaum¹ — ¹TU München, Physik Department, LS Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching, Germany — ²HASYLAB at DESY, 22603 Hamburg, Germany

We present an experimental microfluidic technique which allows for versatile structural investigations at the solid-liquid interface with high time resolution. In our approach reflection geometry using GISAXS (grazing incidence small angle x-ray scattering) is combined with a special designed microfluidic cell where the nanostructures at the solid-liquid interface are investigated. With the microfocussing of the highly brillant x-ray beam of a third generation synchrotron source the kinetics of different processes in the nanoscopic regime are accessible. Applications include the investigation of attachment processes as in the layer formation of nanoparticles, detachment processes of unwanted detrimental films, as well as mixing and swelling experiments. Details on how to adjust the experimental settings (e.g. the beamsize) to the respective addressed questions will be given.

This work has been financially supported by the BMBF (grant number 05K10WOA).