Glass transition reductions in thin freely-standing polymer films: A scaling analysis of chain confinement effects

被引：0
|
作者：
Dalnoki-Veress, K. [1 ]
Forrest, J.A. [1 ]
De Gennes, P.G. [2 ]
Dutcher, J.R. [3 ]
机构：
[1] Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
[2] Collège de France, 11 place M. Berthelot, 75231 Paris Cedex 05, France
[3] Department of Physics, University of Guelph, Guelph, Ont. N1G 2W1, Canada
来源：
Journal De Physique. IV : JP | 2000年 / 10卷 / 07期
关键词：
Glass transition - Molecular dynamics - Molecular structure;
D O I：
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中图分类号：
学科分类号：
摘要：
In this paper we present a new analysis of data on the reduced glass transitions observed in thin freely-standing films. The empirical analysis presented is highly suggestive of the existence of a mechanism of mobility in thin freely-standing films that is inhibited in the bulk and distinct from the usual cooperative motion near the glass transition temperature Tg. A tentative mechanism for Tg reductions in thin freely-standing films is discussed.
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页码：7 / 221
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