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DPG

Dresden 2014 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 16: Poster - Glasses / Stat. Phys. Bio. / Networks (joint DY/BP/CPP/SOE)

BP 16.14: Poster

Dienstag, 1. April 2014, 09:30–12:30, P1

Intra- and inter-molecular dynamics in the course of vitrification in organic glassesLudwig Popp, Benjamin Suttner, •Wilhelm Kossak, and Friedrich Kremer — Universität Leipzig, Fakultät für Physik und Geowissenschaften, Institut für Experimentelle Physik I, Linnestr. 5, 04103 Leipzig

FTIR and BDS are utilized to study the vitrification of various well known glass formers in a wide temperature range around the calorimetric glass transition temperature, Tg. Measurements on Propylene glycol, Glycerol, Salol, Benzophenone, Sorbitol, Xylitol, etc. are compared and the sub-molecluar specificity of the different moieties in their contribution to thermally activated processes including the dynamic glass transition are discussed. By that the necessity of atomistic models of the glass transition beyond coarse grained models is revealed.

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