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Berlin 2015 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 27: Interfaces and Thin Films II (joint session CPP, DS)

CPP 27.4: Vortrag

Dienstag, 17. März 2015, 15:00–15:15, C 243

Morphological Changes of Surface Immobilized Responsive Micelles — •Inna Dewald1, Julia Gensel1, Johann Erath1, Eva Betthausen2, Axel H. E. Müller2,3, and Andreas Fery11University of Bayreuth, Physical Chemistry II — 2University of Bayreuth, Macromolecular Chemistry II — 3Johannes Gutenberg University Mainz, Institute of Organic Chemistry

In recent years, formation of a multitude of smart coatings made from macromolecular building blocks has been demonstrated. Typical examples are brush type architectures or films formed by layer-by-layer self assembly (LbL-SA). In our work, we investigate multicompartment micelles formed from amphiphilic ABC triblock terpolymers as building blocks for responsive coatings. The application of such colloidal units for thin films has several advantages from a material-science perspective, e.g. stimulus-responsivity and multi-functionality on a single particle level and simple preparation of coatings by physisorption. Besides, using LbL-SA allows forming hierarchically structured coatings with novel properties and collective stimulus response of the integrated nanostructures.[1] Here, we investigate the effects of pH and salt on properties of these films [2] and explore the accompanying morphological changes of the surface immobilized micelles as a function of their composition, i.e. properties of each block and the succession they are connected to each other. 1.Gensel J., Dewald I., Erath J., Betthausen E., Müller A. H. E., Fery A., Chem. Sci., 2013, 4, 325. 2.Gensel J., Betthausen E., Hasenöhrl C., Trenkenschuh K., Hund M., Boulmedais F., Schaaf P., Müller A. H. E. and Fery A., Soft Matter, 2011, 7, 11144.

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