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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 54: Poster Session 3

CPP 54.77: Poster

Thursday, April 3, 2014, 15:00–19:00, P2

Role of geometric parameters on nanoparticle-polymer brush composite systems — •Muriel Rovira Esteva, Stefan Wellert, M. Richter, Z. Yenice, O. Soltwedel, and Regine von Klitzing — Stranski-Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany

Polymer brushes are polymers tethered to a surface or interface by one end, which at sufficiently high grafting densities show a stretched conformation away from the surface. Many of its applications involve interaction with particles of some kind, so understanding the interactions between nanoparticle and polymer brushes is of great importance.

A number of parameters may play a significant role on the structure as well as the dynamics of these systems (particle characteristics, brush morphology, polymer-nanoparticle interaction, solvent quality, etc.), but the extremely small sample volume and complexity of the system have rendered the experimental investigation of their influence a challenging task. Poly(2-(dimethylamino)ethyl methacrylate)) (PDMAEMA) brushes with embedded gold nanoparticles have been used as model systems in this work to explore the effect of the various parameters on the composites and obtain a global picture of their behaviour.