Dresden 2009 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 13: POSTERS Polymer Physics
CPP 13.3: Poster
Dienstag, 24. März 2009, 14:00–16:30, P3
Dielectric Spectroscopy and Rheology on Different Poly(alkylene oxide)s — •Christine Gerstl1, Gerald Johannes Schneider1, Wim Pyckhout-Hintzen1, Jürgen Allgaier1, Angel Alegria2, Juan Colmenero2,3, and Dieter Richter1 — 1Institut für Festkörperforschung, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany — 2Centro de Fisica de Materiales, Apartado 1072, 20080 San Sebastian, Spain — 3Donostia International Phyics Center, Apartado 1072, 20080 San Sebastian, Spain
Poly(alkylene oxide)s (PAOs) form a homologous series of type-A polymers with side groups of varying length. Since the PAOs poly(ethylene oxide) and poly(propylene oxide) are known for a long time and have been studied extensively, the higher homologues are ideally suited to probe the influence of side chains on the dynamics of a polymer.
We will present the results of dielectric and rheologic measurements on poly(butylene oxide), poly(hexylene oxide) and poly(octylene oxide), having side groups of (CH2)CH3, (CH2)3CH3, and (CH2)5CH3 respectively. The relaxation of the whole polymer chain as well as the segmental dynamics will be discussed in terms of different models and compared to existing results.