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.
|Autori:||Andreozzi L; Cianflone F; Galli G; Giordano M; Leporini D|
|Titolo:||Debye-Stokes-Einstein fractional law in a polymeric liquid crystal: A non-linear ESR study by using spin probes with different symmetries|
|Anno del prodotto:||1996|
|Digital Object Identifier (DOI):||10.1080/10587259608031886|
|Appare nelle tipologie:||1.1 Articolo in rivista|