Dresden 2006 – wissenschaftliches Programm

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CPP: Chemische Physik und Polymerphysik

CPP 27: POSTER Polymer Physics and Materials

CPP 27.16: Poster

Donnerstag, 30. März 2006, 17:00–19:00, P2

Molecular Editing of Polymer Brushes with the Tip of an AFM — •Roland Groeger¹, Ingo Samerski¹, Thomas Schimmel^1,2, and Stefan Walheim¹ — ¹Institute for Nanotechnology, Forschungszentrum Karlsruhe, 76021 Karlsruhe (Germany) — ²Institute of Applied Physics, University of Karlsruhe, 76131 Karlsruhe (Germany)

Polymer brushes prepared from low molecular-weight carboxyl-functionalized polystyrene and polybutadiene were prepared on silicon oxide surfaces. Their topography and their adhesion properties are investigated by Atomic Force Microscopy (AFM). We describe how these ultra-thin polymer films can be mechano-chemically removed by the tip of an AFM at pre-defined locations and subsequently replaced by another polymer species. In this way it was possible to generate polymeric surfaces with a pre-defined chemical pattern. This opens perspectives for generating specifically functionalized nano-scale patterns, e.g. for nano-biology.