Open AccessMolecular dynamics parameters of liquid crystal mixtures with different chemical structures
Author(s) -
R. N. Kucherov,
Alexander D. Kurilov,
A. V. Savin,
I. A. Vasilyeva,
M. K. Kuzmin,
Д. Н. Чаусов
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1560/1/012047
Subject(s) - molecular dynamics , rotational diffusion , relaxation (psychology) , liquid crystal , dipole , diffusion , crystal (programming language) , dielectric , molecule , spectroscopy , materials science , chemical physics , chemistry , thermodynamics , nuclear magnetic resonance , computational chemistry , organic chemistry , physics , psychology , social psychology , optoelectronics , quantum mechanics , computer science , programming language
Results of molecular parameters studies using methods of dielectric spectroscopy, acoustic spectroscopy and viscometry are compared. An influence of dipole-dipole interactions on the relaxation time, the coefficients of molecular friction and rotational diffusion of molecules has been established. An analysis of modern methods for determining the coefficient of molecular friction and rotational diffusion for liquid crystal mixtures of different composition is carried out. It is shown that currently there is no theory that can describe qualitatively and quantitatively the behavior of the molecular relaxation parameters of the liquid crystal mixtures.