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SUMMARY:ICP Kolloquium: Sabine Ludwigs, 21. Januar 2021,  „Bioinspired Multiresponsive Polymer Films“
DESCRIPTION:Prof. Dr. Sabine LudwigsInstitut für Polymerchemie, Universität StuttgartDonnerstag, 21. Januar 2021, 16:00 Uhrvia zoom\n \nBioinspired Multiresponsive Polymer Films\nAbstract:The beauty and multifunctionality of nature has been a constant inspiration for materials scientists to mimic functionalities and hierarchical structures in man-made materials. Both, color and motion in plants are examples which can be - to some extent - replicated by stimuli-responsive polymers and materials thereof.The field of expertise of my group are conducting polymers which are used in a number of polymer electronics devices, but also in electrochemical applications where electronic and ionic charge transport are intimately linked with each other. 1Among various self-synthesized materials we study the commercially available blend poly(ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). Apart from its use as “synthetic metal” astransparent flexible electrode, the material is a mixed conductor and also shows ionic conductivity as function of humidityas we could recently elucidate. 2The humidity dependence of the PSS polyelectrolyte phase together with the electroactive nature of the PEDOT can further be used to create multifunctional and multiresponsive materials, e.g. for humidity-triggered bilayer actuators. 3 Using simple analytical models allows to predict curvatures of such “intelligent” bilayer actuators.1 M. Wieland, C. Malacrida, Q. Yu, C. Schlewitz, L. Scapinello, A. Penoni, S. Ludwigs, Conductance and SpectroscopicMapping of EDOT Polymer Films upon Electrochemical Doping, in „Focus on New Materials and Applications forOrganic Electrolyte Gated Transistors“, Flex. Print. Electron. 2020, 5, 014016.2 M. Wieland, C. Dingler, R. Merkle, J. Maier, S. Ludwigs, Humidity-Controlled Water Uptake and Conductivities in Ionand Electron Mixed Conducting Polythiophene Films, ACS Applied Materials & Interfaces, 2020, 12, 6742.3 C. Dingler, H. Müller, M. Wieland, D. Fauser, H. Steeb, S. Ludwigs Understanding Mechanical Behavior to CurvaturePrediction of Humidity-Triggered Bilayer Actuators; Advanced Materials 2020, accepted.
DTSTART;TZID=Europe/Berlin;VALUE=DATE:20210121
URL;VALUE=URI:https://www.icp.uni-stuttgart.de/news/events/ICP-Kolloquium-Sabine-Ludwigs-21-00001.-Januar-2021-Bioinspired-Multiresponsive-Polymer-Films/
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