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CPP: Chemische Physik und Polymerphysik

CPP 27: POSTER Polymer Physics and Materials

CPP 27.12: Poster

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

Structural and mechanical properties of thin PMMA films prepared by pulsed laser deposition — •Andreas Meschede, Erik Süske, Thorsten Scharf, and Hans-Ulrich Krebs — Institut für Materialphysik, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen

Thin polymer films were grown by pulsed laser deposition (PLD) at 248 nm in ultra high vacuum (UHV). In the case of poly(methyl methacrylate) (PMMA), the observed films consist of two components which differ in chemical and mechanical properties as molecular mass or amount of crosslinking. These properties can be controlled by deposition parameters like substrate temperature and laser fluence or by using absorption optimized target material. In this contribution the deposition mechanism with respect to the film characteristics, as for example microstructure and mechanical properties, which have been examined by scanning electron microscopy, mechanical spectroscopy and nano-indentation measurements, will be discussed.