Distribution of reorientational times of optically anisotropic molecular liquids from depolarized light-scattering studies

1997 ◽  
Vol 106 (17) ◽  
pp. 6957-6963 ◽  
Author(s):  
K. L. Ngai ◽  
G. Floudas ◽  
A. K. Rizos
Keyword(s):  
Light Scattering ◽  
Molecular Liquids ◽  
Depolarized Light Scattering

scholarly journals Collision-Induced Light Scattering in Liquids and the Binary Collision Model

1973 ◽  
Vol 51 (19) ◽  
pp. 2025-2031 ◽  
Author(s):  
J. H. K. Ho ◽  
G. C. Tabisz
Keyword(s):  
Molecular Dynamics ◽  
Light Scattering ◽  
Theoretical Estimate ◽  
Binary Collision ◽  
Reliable Information ◽  
Molecular Liquids ◽  
Collision Model ◽  
Scattering Spectrum ◽  
Light Scattering Spectrum ◽  
Depolarized Light Scattering

The collision-induced Rayleigh wing in the depolarized light scattering spectrum of five molecular liquids has been studied in order to try to assess the validity of the isolated binary collision model. The intensity profiles have been analyzed in terms of the expressions derived by Bucaro and Litovitz, [Formula: see text], and by Shin, [Formula: see text]. It is concluded that before a positive distinction can be made between models or before reliable information on molecular dynamics may be extracted from the spectrum, a good theoretical estimate of the form of the induced polarizability Δα for close collisions is required.

Viscoelastic properties of liquid pentachlorobiphenyl under pressure using depolarized light scattering

1983 ◽  
Vol 61 (9) ◽  
pp. 1291-1296 ◽  
Author(s):  
P. Bezot ◽  
C. Hesse-Bezot ◽  
Ph. Pruzan
Keyword(s):  
High Pressure ◽  
Light Scattering ◽  
Shear Modulus ◽  
Viscoelastic Properties ◽  
Pressure Range ◽  
Glassy State ◽  
Molecular Liquids ◽  
Large Pressure ◽  
Scattering Spectra ◽  
Depolarized Light Scattering

A study of the depolarized light scattering spectra of high pressure supercooled pentachlorobiphenyl is presented. From the analysis of the propagative shear doublet, the infinite shear modulus Gx is measured over a large pressure range, at various temperatures, up to a pressure where the liquid is in a glassy state. Gx(P) is found to vary linearly at each temperature. From values of Gx (P = 0.1 MPa) together with those obtained in a previous paper at P = 0.1 MPa as a function of T, it is concluded that Gx(T) is linear over 70 °C, contrary to what is generally obtained in most of the supercooled molecular liquids.

Depolarized light scattering, flow birefringence and local order in molecular liquids

1980 ◽  
Vol 39 (2) ◽  
pp. 471-491 ◽  
Author(s):  
J.L. Viovy ◽  
G.M. Searby ◽  
P. Sixou ◽  
J.V. Champion
Keyword(s):  
Light Scattering ◽  
Flow Birefringence ◽  
Local Order ◽  
Molecular Liquids ◽  
Depolarized Light Scattering
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