Dresden 2014 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 16: Interfaces and Thin Films II
CPP 16.5: Vortrag
Dienstag, 1. April 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 Forstner2 — 1Institut 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.