Relation between main- and normal-mode relaxation. A dielectric study on poly (propyleneoxide)
Relation between main- and normal-mode relaxation. A dielectric study on poly (propyleneoxide)
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主模弛豫和正常模弛豫之间的关系。
DOI：
10.1007/bfb0116484
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
A. Schönhals
中科院分区：
文献类型：
--
作者：
E. Schlosser;A. Schönhals
通过在很大频率范围内的介电测量，研究了不同相对分子质量聚氧丙烷的主模和简正模弛豫关系。通过一种特殊技术的评估表明，在比α弛豫的伏格尔温度更高的温度下，α弛豫和简正模弛豫的融合。这意味着Rouse模型不适用于玻璃化转变温度附近的简正模弛豫。
The relation between main- and normal-mode relaxation is studied on poly(propyleneoxide) of different molecular weights by dielectric measurements in a very large frequency range. The evaluation by a special technique shows a merging of α-relaxation and of normal-mode relaxation at an essential higher temperature than the Vogel temperature of the α-relaxation. This means the Rouse model is not applicable to the normal-mode relaxation near the glass transition temperature.