Berlin 2005 – scientific programme

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CPP: Chemische Physik und Polymerphysik

CPP 29: POSTER: Polymer physics

CPP 29.17: Poster

Tuesday, March 8, 2005, 16:30–18:30, Poster TU D

Simple, tunable nano- and micro-periodic surfaces in poly(dimethyl siloxane) — •Arnaud Chiche, Joao T. Cabral, and Christopher M. Stafford — NIST Polymers Division, Gaithersburg, MD (United States)

We report a simple methodology to generate periodic structures in poly(dimethyl siloxane) surfaces. The technique requires only a conventional surface treatment (ultraviolet and/or plasma exposure) and simultaneous mechanical deformation of an elastomeric membrane. Sinusoidal surface modulations, with tunable amplitude and frequency, in the nano- and micrometer range, are readily obtained. The limitations and potential of this technique are discussed in detail, as well as the oxidation mechanism and kinetics particularly in the case of a plasma treatment. Finally, we demonstrate that complex periodic topologies are induced under multi-axial deformation. Applications of this inexpensive methodology include stamps for soft lithography and surface patterning.