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Dresden 2014 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 16: Interfaces and Thin Films II

CPP 16.5: Talk

Tuesday, April 1, 2014, 10:30–10:45, ZEU 114

POLARIZED μ-RAMAN IMAGING SPECTROSCOPY: CRYSTALLINITY AND ORIENTATION OF SHEARED PP FILMS — •Krisztina Vincze-Minya1, Sabine Hild1, Sibylle Jilg2, and Reinhard Forstner21Institut für Polymerwissenschaften, Johannes Kepler Universität Linz, Österreich — 2TCKT Wels, Österreich

Isotactic PP ring-samples where prepared by Pirouette-dilatometer under different pressures and sheared at different temperatures and shear rates. The variations in crystallinity and orientation can be characterized on the microscale using polarized confocal Raman microscopy. For these ivestigations a method was developed previously by measuring materials with known orientation (iPP thin films), whereby the results where correlated with WAXS. The good agreement of the Raman-results with the WAXS-data was already reported in case of the defined samples. By the means of these findings the investigation method can be applied for the characterization of the samples with undefined orientation prepared with the Pirouette dilatometer.

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