Electron spin resonance studies of the enhanced rotation and the fractional Debye-Stokes-Einstein law in polymeric liquid crystals

被引：11
作者：
Andreozzi, L
Di Schino, A
Giordano, M
Leporini, D
机构：
[1] Univ Pisa, Dipartimento Fis, I-56100 Pisa, Italy
[2] Ist Nazl Fis Mat, UdR, Pisa, Italy
来源：
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES | 1998年 / 77卷 / 02期
关键词：
D O I：
10.1080/13642819808204983
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We investigated the rotational dynamics of molecular tracers dissolved in a polymeric mesophase using two magnetic resonance spectroscopies. It is found that the coupling between the reorientation and the viscous flow is partial and well described by the fractional Debye-Stokes-Einstein law tau proportional to eta(xi) with 0 < xi less than or equal to 1, tau and eta being the rotational correlation times of the tracers and the viscosity respectively.
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页码：547 / 556
页数：10
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