Related Experiment Video
Updated: Jun 5, 2026

Synthesis and Exfoliation of Discotic Zirconium Phosphates to Obtain Colloidal Liquid Crystals
Published on: May 25, 2016
Dispersive kinetics in discotic liquid crystals
O Kruglova1, F M Mulder, G J Kearley
1Laboratoire Interfaces & Fluides Complexes, Centre d'Innovation et de Recherche en Matériaux Polymères, Université de Mons Hainaut, 20, Place du Parc, B-7000 Mons, Belgium. o.v.kruglova@gmail.com
Abstract:
The dynamics of the discotic liquid-crystalline system, hexakis (n-hexyloxy) triphenylene (HAT6), is considered in the frame of the phenomenological model for rate processes proposed by Berlin. It describes the evolution of the system in the presence of the long-time scale correlations in the system, and we compare this with experimental quasielastic neutron scattering of the molecular assembly of HAT6 in the columnar phase. We interpret the parameters of this model in terms of nonextensive thermodynamics in which rare events in the local fast dynamics of some parts of the system control the slower dynamics of the larger molecular entity and lead to a fractional diffusion equation. The importance of these rare local events to the overall dynamics of the system is linked to the entropic index, this being obtained from the data within the model approach. Analysis of the waiting-time dependence from momentum transfer reveals a Lévy distribution of jump lengths, which allows us to construct the van Hove correlation function for discotic liquid-crystalline system.
Related Concept Videos
Van der Waals Interactions
The Colloidal State
Nonideal Two-Component Liquid Solutions
Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model
Extraction: Partition and Distribution Coefficients
For extracting a solute from an aqueous phase into an organic...
Recrystallization: Solid–Solution Equilibria

