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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Soret effect in lyotropic liquid crystal in the isotropic phase revealed by time-resolved thermal lens

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Author(s):
Oliveira, G. M. [1] ; Zanuto, V. S. [1] ; Flizikowski, G. A. S. [1] ; Kimura, N. M. [1] ; Sampaio, A. R. [1] ; Novatski, A. [2] ; Baesso, M. L. [1] ; Malacarne, L. C. [1] ; Astrath, N. G. C. [1]
Total Authors: 9
Affiliation:
[1] Univ Estadual Maringa, Dept Phys, BR-87020900 Maringa, PR - Brazil
[2] Univ Estadual Ponta Grossa, Dept Phys, BR-84010330 Ponta Grossa, PR - Brazil
Total Affiliations: 2
Document type: Journal article
Source: JOURNAL OF MOLECULAR LIQUIDS; v. 312, AUG 15 2020.
Web of Science Citations: 0
Abstract

We demonstrate the Soret effect in a lyotropic liquid crystal at different temperatures across the isotropic phase detected by the time-resolved thermal lens technique. We investigate thermo-optical and mass diffusion properties of the sample and present quantitative characterization of Soret, mass and thermal diffusion coefficients. The results reveal that the temperature gradient induced in the experiments causes the migration of micelles from hotter to colder regions in the sample. The increase of the mass diffusion coefficient with temperature is related to the decrease of the radius of the micelles in the solution. (C) 2020 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 14/50983-3 - INCT 2014: complex fluids
Grantee:Antonio Martins Figueiredo Neto
Support Opportunities: Research Projects - Thematic Grants