SKM 2023 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 35: Poster Session II
CPP 35.28: Poster
Mittwoch, 29. März 2023, 11:00–13:00, P1
New experimental methods for structure analysis of soft matter — •Eric Euchler1, Anna Katharina Sambale1, Regine Boldt1, Kai Uhlig1, Laura Neumann1, Konrad Schneider1, Matthias Schwartzkopf2, Stephan Roth2, 3, and Markus Stommel1, 4 — 1Leibniz-Institut fuer Polymerforschung, Dresden, Germany — 2Deutsches Elektronen Synchrotron DESY, Hamburg, Germany — 3KTH Royal Institute of Technology, Stockholm, Sweden — 4Technical University Dresden, Dresden, Germany
Recently developed stretching devices for synchrotron measurements are available to investigate deformation-induced phenomena, such as strain-induced crystallization in natural rubber or void formation in biological tissues, at quasi-static and impact loading. In addition to measurements in transmission, novel studies of thin layers on flexible substrates can be realized by performing in situ grazing-incidence (GI) experiments.
Beside structure analysis in solid parts, the flow-induced structure formation in polymer melts is of particular interest to better understand the impact of melt processing parameters on macroscopic material properties, such as Young’s modulus and tensile strength. For this purpose, a new experimental setup has been designed and built to study time- and temperature-dependent structure evolution events in thermoplastics. Within a temperature-controlled flow channel, polymer melts can be monitored with a microfocus X-ray synchrotron beam and first results obtained for two different thermoplastic materials proofed the experimental concept under quiescent melt conditions.