Debye-Stokes-Einstein fractional law in a polymeric liquid crystal: A non-linear ESR study by using spin probes with different symmetries.

被引：6

作者：

Andreozzi, L ^{[1
]}

Cianflone, F ^{[1
]}

Galli, G ^{[1
]}

Giordano, M ^{[1
]}

Leporini, D ^{[1
]}

机构：

[1] DIPARTIMENTO CHIM & CHIM IND, I-56126 PISA, ITALY

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1996年 / 290卷

关键词：

D O I：

10.1080/10587259608031886

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The reorientation of spin probes with very different aspect ratios, dissolved in a polymeric liquid crystal, is studied by non-linear Electron Spin Resonance. A scaling law between the rotational correlation time tau and the macroscopic viscosity, as measured via the dynamic shift factor a(T), is found. A discussion on the current interpretations of the scaling, which takes the form tau proportional to a(T)(xi) with 0 less than or equal to xi less than or equal to 1, is given.

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页码：1 / 10

页数：10

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