Dresden 2020 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 19: Focus: Soft Matter and Nanocomposites - New opportunities with advanced neutron sources II

CPP 19.8: Vortrag

Montag, 16. März 2020, 16:45–17:00, ZEU 222

The impact of water on functional nanocellulose thin films — •Calvin J. Brett1,2, Lucas P. Kreuzer3, Tobias Widmann3, Elisabetta Nocerino1, Ola K. Forslund1, Lionel Porcar4, Peter Müller-Buschbaum3,5, Martin Månsson1, Daniel L. Söderberg1, and Stephan V. Roth1,21KTH Royal Institute of Technology, Stockholm, Sweden — 2Deutsches Elektronen-Synchrotron, Hamburg, German — 3Technische Universität München, Lehrstuhl für Funktionelle Materialien, Garching, Germany — 4Institut Laue-Langevin, Grenoble, France — 5Heinz Maier-Leibnitz Zentrum (MLZ), Garching, Germany

Sustainable devices experience a massive increase of attention over the last decade. Our whole economy is starting to minimize the use of fossil resources. Nevertheless, it is yet not fully understood how sustainable devices perform and degrade under environmental influences and how we could improve possible drawbacks. Cellulose, as one of the most earth abundant nature materials, consists of so-called cellulose nanofibrils. These nanoscale building blocks have high potential in applications due to their low density, high material strength and sustainability. Within this project, we show how to manufacture materials with desired physical properties such as electrical conductance, optical transmittance, and the tunability of wetting behavior. For real-life applications, we tested the water impact on these functional thin films by applying humidity and studying the films by means of grazing incidence small-angle neutron/X-ray scattering (GISAXS/GISANS) at P03 / PETRA III (Hamburg) and D22 / ILL (Grenoble).

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