THE SCALING OF THE DIELECTRIC ALPHA-RELAXATION AND BETA-RELAXATION OF AMORPHOUS POLYETHYLENETEREPHTHALATE

被引：17
|
作者：
HOFMANN, A
KREMER, F
FISCHER, EW
机构：
[1] Max Planck Institut für Polymerforschung, 55128 Mainz
来源：
PHYSICA A | 1993年 / 201卷 / 1-3期
关键词：
D O I：
10.1016/0378-4371(93)90406-T
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Broadband dielectric spectroscopy (10(-2)Hz-10(9)Hz) has been employed to study the scaling of the alpha- and beta-relaxation in amorphous polyethyleneterephthalate (PET). The experimental results are compared with the predictions of the mode coupling theory (MCT). No agreement is found in contrast to an analysis of Gotze and Sjogren, which was based on experimental data limited to frequencies < 10(6) Hz. It is suggested that low frequency beta-relaxations (omega less-than-or-equal-to 10(9) Hz) cannot be interpreted in the framework of the idealised MCT.
引用
收藏
页码：106 / 111
页数：6
相关论文
共 50 条
12345