Dresden 2014 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 4: Crystallization, Nucleation and Self Assembly I
CPP 4.9: Talk
Monday, March 31, 2014, 11:45–12:00, ZEU 114
Switchable Properties of Smart Coatings from Polymeric Micelles Triggered by External Stimuli — •Inna Dewald1, Julia Gensel1, Johann Erath1, Eva Betthausen2, Axel H. E. Müller2,3, and Andreas Fery1 — 1University of Bayreuth, Physical Chemistry II, Germany — 2University of Bayreuth, Macromolecular Chemistry II, Germany — 3Johannes Gutenberg University Mainz, Institute of Organic Chemistry, Germany
Today, many objects of our everyday life consist of coated materials indicating their growing importance in the modern era of technology. Following this trend in recent years, formation of a variety of smart coatings using macromolecular building blocks has been demonstrated. On that account, we investigate the potential of pH-sensitive ABC triblock terpolymer micelles. The use of such colloidal particles as base material for thin films has several advantages from a material-science perspective, e.g. these building blocks can be stimulus-responsive and multi-functional on the single particle level, while coatings can be formed by simple physisorption. Using the LbL approach for pH-responsive micelles leads to coatings with novel properties, internal hierarchy and collective stimulus response of the integrated nanostructures.[1] In our work, we investigate the effects of pH on surface properties of these films [2] and explore their potential for applications as active surfaces for self-regulated bacteria release which change their surface characteristics in response to cellular metabolism.[3] 1. Gensel J. et al., Chem. Sci., 2013, 4, 325-334. 2. Gensel J. et al., Soft Matter, 2011, 7, 11144-11153. 3. Gensel J. et al., Adv. Mater., 2012, 24, 985-989.