The apparent activation energy for mechanical and dielectric relaxation in glass-forming (polymeric) liquids: A misconception?

被引：8

作者：

Struik, LCE

机构：

[1] DSM Research, 6160 MD, Geleen

来源：

POLYMER | 1997年 / 38卷 / 03期

关键词：

activation energy; apparent activation energy; glass transition; secondary transition; WLF equation;

D O I：

10.1016/S0032-3861(96)00699-4

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

It is shown that the well-known concept of an apparent activation energy (Q(app)) is confusing. Much of the problem with the application of thermal activation theory to glass transition disappears when the concept is abandoned and replaced by a strict application of the Arrhenius formula with temperature dependentactivation energy, Q not equal Q(app). (C) 1997 Elsevier Science Ltd.

引用

页码：733 / 735

页数：3

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