Caracterización de cristales líquidos por microscopía óptica en sistemas surfactante polietoxilado-alcano-agua

Detalhes bibliográficos
Autor(a) principal: Chávez,Gerson
Data de Publicação: 2013
Outros Autores: Parra,Irán, Luzardo,Milangel, Bravo,Bélgica, Márquez,Nelson
Tipo de documento: Artigo
Idioma: spa
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000900011
Resumo: The phase behavior of an alcohol polyethoxylated surfactant with decane and dodecane oil phase varying the water proportion from 5 to 90% to determine compositions in which the formation of liquid crystals and microemulsions ocurred was investigated. Pseudoternary phase diagrams were built to represent the regions of liquid crystals, biphases and microemulsions. Polarized light optical microscopy was used for the analysis and characterization of the separate phases. The micrographs obtained showed characteristics of hexagonal and lamellar phases of liquid crystal, isotropic phases, microemulsions and vesicles. This study is important to propose hypothesis regarding the factors determining the formation and stability of phases composed by surfactant/oil/water systems.
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spelling Caracterización de cristales líquidos por microscopía óptica en sistemas surfactante polietoxilado-alcano-aguaoptical microscopyliquid crystalalcohol polyethoxylatedThe phase behavior of an alcohol polyethoxylated surfactant with decane and dodecane oil phase varying the water proportion from 5 to 90% to determine compositions in which the formation of liquid crystals and microemulsions ocurred was investigated. Pseudoternary phase diagrams were built to represent the regions of liquid crystals, biphases and microemulsions. Polarized light optical microscopy was used for the analysis and characterization of the separate phases. The micrographs obtained showed characteristics of hexagonal and lamellar phases of liquid crystal, isotropic phases, microemulsions and vesicles. This study is important to propose hypothesis regarding the factors determining the formation and stability of phases composed by surfactant/oil/water systems.Sociedade Brasileira de Química2013-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000900011Química Nova v.36 n.9 2013reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422013000900011info:eu-repo/semantics/openAccessChávez,GersonParra,IránLuzardo,MilangelBravo,BélgicaMárquez,Nelsonspa2013-11-12T00:00:00Zoai:scielo:S0100-40422013000900011Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2013-11-12T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Caracterización de cristales líquidos por microscopía óptica en sistemas surfactante polietoxilado-alcano-agua
title Caracterización de cristales líquidos por microscopía óptica en sistemas surfactante polietoxilado-alcano-agua
spellingShingle Caracterización de cristales líquidos por microscopía óptica en sistemas surfactante polietoxilado-alcano-agua
Chávez,Gerson
optical microscopy
liquid crystal
alcohol polyethoxylated
title_short Caracterización de cristales líquidos por microscopía óptica en sistemas surfactante polietoxilado-alcano-agua
title_full Caracterización de cristales líquidos por microscopía óptica en sistemas surfactante polietoxilado-alcano-agua
title_fullStr Caracterización de cristales líquidos por microscopía óptica en sistemas surfactante polietoxilado-alcano-agua
title_full_unstemmed Caracterización de cristales líquidos por microscopía óptica en sistemas surfactante polietoxilado-alcano-agua
title_sort Caracterización de cristales líquidos por microscopía óptica en sistemas surfactante polietoxilado-alcano-agua
author Chávez,Gerson
author_facet Chávez,Gerson
Parra,Irán
Luzardo,Milangel
Bravo,Bélgica
Márquez,Nelson
author_role author
author2 Parra,Irán
Luzardo,Milangel
Bravo,Bélgica
Márquez,Nelson
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Chávez,Gerson
Parra,Irán
Luzardo,Milangel
Bravo,Bélgica
Márquez,Nelson
dc.subject.por.fl_str_mv optical microscopy
liquid crystal
alcohol polyethoxylated
topic optical microscopy
liquid crystal
alcohol polyethoxylated
description The phase behavior of an alcohol polyethoxylated surfactant with decane and dodecane oil phase varying the water proportion from 5 to 90% to determine compositions in which the formation of liquid crystals and microemulsions ocurred was investigated. Pseudoternary phase diagrams were built to represent the regions of liquid crystals, biphases and microemulsions. Polarized light optical microscopy was used for the analysis and characterization of the separate phases. The micrographs obtained showed characteristics of hexagonal and lamellar phases of liquid crystal, isotropic phases, microemulsions and vesicles. This study is important to propose hypothesis regarding the factors determining the formation and stability of phases composed by surfactant/oil/water systems.
publishDate 2013
dc.date.none.fl_str_mv 2013-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000900011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000900011
dc.language.iso.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv 10.1590/S0100-40422013000900011
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.36 n.9 2013
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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