Regensburg 2007 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
CPP: Fachverband Chemische Physik und Polymerphysik
CPP 16: Colloids and Nanoparticles III
CPP 16.2: Vortrag
Dienstag, 27. März 2007, 17:15–17:30, H47
Influence of the preparation and processing on thermal and mechanical properties of metal/poly(methyl methacrylate) nanocomposites — •Christian Hub1, Shane Harton2, Marcus Hunt3, Rainer Fink1, and Harald Ade4 — 1Universität Erlangen, Lehrstuhl für Physikalische Chemie II, Erlangen, Germany — 2Columbia University, Department of Chemical Engineering, New York, USA — 3North Carolina State University, Department of Fiber & Polymer Science, Raleigh, USA — 4North Carolina State University, Department of Physics, Raleigh, USA
The inclusion of nanoparticles into polymeric materials is well-known to increase mechanical strength, provide tunable optical and electrical properties, or improve thermal resistance of the host polymer matrix. Because of the technologically relevant applications of nanocomposites, numerous investigations showing significant, and sometimes anomalous, changes in the observed properties have been done in recent years. In the current study the influence of the sample preparation and processing on thermal and mechanical properties of silica/PMMA nanocomposites were investigated. The changes in mechanical and impact strength of the obtained nanocomposites have been probed by dynamic mechanical analysis. Thermal properties have been investigated by differential scanning calorimetry. We will demonstrate that equilibrium inclusion of nanoparticles within polymer matrices can have a significant impact on mechanical properties of the host polymer, even though it may not be accompanied by changes in other properties such as the glass transition temperature (funded by DAAD).