Local dynamics in nanocomposites

被引：4

作者：

Anastasiadis, SH

机构：

[1] Fdn Res & Technol Hellas, Inst Elect Struct & Laser, Heraklion 71110, Crete, Greece

[2] Univ Crete, Dept Phys, Heraklion 71003, Crete, Greece

来源：

JOURNAL DE PHYSIQUE IV | 2000年 / 10卷 / P7期

关键词：

D O I：

10.1051/jp4:2000751

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 alpha-relaxation and exhibits a much weaker temperature dependence. This is discussed in relation to either the interlayer-spacing restricting the cooperative volume of the alpha-relaxation or to the dominance of the more mobile interphase regions as predicted by simulations.

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页码：255 / 258

页数：4

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