| Numéro |
J. Phys. IV France
Volume 10, Numéro PR7, May 2000
International Workshop on Dynamics in Confinement
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|---|---|---|
| Page(s) | Pr7-255 - Pr7-258 | |
| DOI | https://doi.org/10.1051/jp4:2000751 | |
International Workshop on Dynamics in Confinement
J. Phys. IV France 10 (2000) Pr7-255-Pr7-258
DOI: 10.1051/jp4:2000751
Foundation for Research and Technology-Hellas, Institute of Electronic Structure and Laser, P. O. Box 1527, 71110 Heraklion, Crete, Greece, and University of Crete, Physics Depaetment, 71003 Heraklion, Crete, Greece
© EDP Sciences 2000
J. Phys. IV France 10 (2000) Pr7-255-Pr7-258
DOI: 10.1051/jp4:2000751
Local dynamics in nanocomposites
S.H. AnastasiadisFoundation for Research and Technology-Hellas, Institute of Electronic Structure and Laser, P. O. Box 1527, 71110 Heraklion, Crete, Greece, and University of Crete, Physics Depaetment, 71003 Heraklion, Crete, Greece
Abstract
The local dynamics of 1.5-2.0 nm polymer films confined between parallel solid surfaces are
investigated with dielectric spectroscopy in polymer/silicate intercalated nanocomposites. Confinement results
in segmental dynamics which is much faster than the bulk-polymer [Math] -relaxation and exhibits a much weaker
temperature dependence. This is discussed in relation to either the interlayer-spacing restricting the cooperative
volume of the [Math]-relaxation or to the dominance of the more mobile interphase regions as predicted by
simulations.
© EDP Sciences 2000