Dresden 2009 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 21: Polymer Physics II

CPP 21.2: Vortrag

Mittwoch, 25. März 2009, 09:45–10:00, ZEU 114

Investigation of changes in crystalline structure during deformation of semi-crystalline polymers by synchrotron radiation — •Konrad Schneider and Andreas Schöne — Leibniz Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany

During deformation of semi-crystalline polymers very complex structural changes appear. To distinguish certain processes simultaneous WAXS and SAXS was measured during deformation. The characteristical changes will be presented and discussed in detail. First changes in the crystalline phase appears far before reaching the yielding point. This correlates with the onset of irreversible deformation. In the yielding region radical changes on long- as well as short scale range appear.