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

被引：58

作者：

Dalnoki-Veress, K ^{[1
]}

Forrest, JA

de Gennes, PG

Dutcher, JR

机构：

[1] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England

[2] Coll France, F-75231 Paris 05, France

[3] Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada

来源：

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

关键词：

D O I：

10.1051/jp4:2000744

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

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 T-g. A tentative mechanism for T-g reductions in thin freely-standing films is discussed.

引用

页码：221 / 226

页数：6

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