Doctoral Thesis
DOI
https://doi.org/10.11606/T.43.1999.tde-19062015-154820
Document
Author
Full name
Eduardo Fontes Henriques
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 1999
Supervisor
Committee
Henriques, Vera Bohomoletz (President)
Amaral, Lia Queiroz do
Barbosa, Márcia Cristina Bernardes
Evangelista, Luiz Roberto
Lyra, Jorge Lacerda de
Amaral, Lia Queiroz do
Barbosa, Márcia Cristina Bernardes
Evangelista, Luiz Roberto
Lyra, Jorge Lacerda de
Title in Portuguese
Um modelo para o estudo do efeito da polidispersividade sobre as fases nemáticas em sistemas micelares
Keywords in Portuguese
Cristais líquidos
Micelas
Sistemas ternários
Micelas
Sistemas ternários
Abstract in Portuguese
Consideramos um modelo de interações quadrupolares entre micelas capaz de explicar a ocorrência de fases nemáticas biaxiais. Micelas uniaxiais de formatos variáveis, representando a polidispersividade do sistema, são incluídas. O modelo apresenta uma fase nemática calamítica separada de uma fase discótica por uma fase biaxial, segundo resultados de campo médio e de simulações de Monte Carlo.
Title in English
A model for studying the effect of the polydispersity on the nematic phases in micellar systems
Keywords in English
Liquid crystals
Micelles
Ternary systems
Micelles
Ternary systems
Abstract in English
We consider a model of quadrupole interactions between micelles which is able to explain the occurrence of biaxial phases. Uniaxial micelles of variable shape, representing system polydispersity, are included. The model displays a calamitic nematic phase separated from a discotic phase by a biaxial phase, according to mean-field and Monte Carlo simulation results.
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Henriques__1999.pdf (8.34 Mbytes)
Publishing Date
2015-06-22
WARNING: The material described below relates to works resulting from this thesis or dissertation. The contents of these works are the author's responsibility.
- HENRIQUES, E. F., et al. Mixture of changing uniaxial micellar forms in lyotropic biaxial nematics. Liquid Crystals, 2008, vol. 35, p. 555-568.
- HENRIQUES, E. F., and HENRIQUES, V. B. Biaxial phases in polydisperse mean-field model solution of uniaxial micelles. The Journal of Chemical Physics, 1997, vol. 107, p. 8636.
- HENRIQUES, V. B., e HENRIQUES, E. F. Fase nemáticas biaxiais: polidispersividade e mudança de forma. In XXIII Encontro Nacional de Física da Matéria Condensada, São Lourenço, 2000. , 2000. Resumo.
- HENRIQUES, V. B., e HENRIQUES, E. F. Modelo de spins para o estudo de fases nemáticas de um cristal liquido micelar: efeito da polidispersividade. In XIV Encontro Nacional de Física da Matéria Condensada, Águas de Lindóia, 1996. , 1996. Resumo.
All rights of the thesis/dissertation are from the authors
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CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2024. All rights reserved.