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Berlin 2008 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 34: POSTERS Polymerphysics

CPP 34.31: Poster

Thursday, February 28, 2008, 17:00–19:30, Poster A

AFM analysis of novel Polypropylenes — •Dirk Doser1, Stefan Fischer1, Othmar Marti1, Tobias Diesner2, and Bernhard Rieger21Institute of Experimental Physics, University of Ulm, 89069 Ulm, Germany — 2Wacker-Lehrstuhl für makromolekulare Stoffe, TU München

The aim of this work was to observe the complex structures of novel isotactic Polypropylenes (iPP) using tapping mode and pulsed force mode AFM. Therefore two different approaches in sample preparation were investigated. Thin film preparation on Silicon wavers with toluene solved Polypropylene served to explore the unstretched structure. The thin films were also prepared on stretchable carriers like PDMS for studying the stretched iPP. Second samples of isotactic Polypropylene microtome cuts were prepared by potassium permanganate etching. In that case some samples were stretched before preparation. The results of this measurements will be discussed.

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