Phase equilibrium and structure formation in gold nanoparticles - Nematic liquid crystal composites: Experiments and theory

Autores
Soulé, Ezequiel Rodolfo; Milette, Jonathan; Reven, Linda; Rey, Alejandro D.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A theoretical and experimental study of mixtures of a calamitic nematic liquid crystal and gold nanoparticles capped with mixed monolayers (alkylic + mesogenic ligands) is presented. The effect of the ligand monolayer composition and nanoparticle concentration on the solubility in the isotropic phase and on the isotropic-nematic phase transition is studied. Mixed monolayers show the highest miscibility and lead to the formation of well-defined cellular networks. This behaviour is explained in terms of a mean-field thermodynamic model, in combination with a phenomenological expression for the isotropic interaction parameter that accounts for entropic and enthalpic effects of the mixed ligand monolayer. The final structure of the material is shown to be determined essentially by the phase equilibrium behaviour. © 2012 The Royal Society of Chemistry.
Fil: Soulé, Ezequiel Rodolfo. McGill University; Canadá. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Milette, Jonathan. McGill University; Canadá
Fil: Reven, Linda. McGill University; Canadá
Fil: Rey, Alejandro D.. McGill University; Canadá
Materia
Liquid Crystal
Thermodynamics
Phase Separation
Nanoparticles
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/54010
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Phase equilibrium and structure formation in gold nanoparticles - Nematic liquid crystal composites: Experiments and theorySoulé, Ezequiel RodolfoMilette, JonathanReven, LindaRey, Alejandro D.Liquid CrystalThermodynamicsPhase SeparationNanoparticleshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1A theoretical and experimental study of mixtures of a calamitic nematic liquid crystal and gold nanoparticles capped with mixed monolayers (alkylic + mesogenic ligands) is presented. The effect of the ligand monolayer composition and nanoparticle concentration on the solubility in the isotropic phase and on the isotropic-nematic phase transition is studied. Mixed monolayers show the highest miscibility and lead to the formation of well-defined cellular networks. This behaviour is explained in terms of a mean-field thermodynamic model, in combination with a phenomenological expression for the isotropic interaction parameter that accounts for entropic and enthalpic effects of the mixed ligand monolayer. The final structure of the material is shown to be determined essentially by the phase equilibrium behaviour. © 2012 The Royal Society of Chemistry.Fil: Soulé, Ezequiel Rodolfo. McGill University; Canadá. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Milette, Jonathan. McGill University; CanadáFil: Reven, Linda. McGill University; CanadáFil: Rey, Alejandro D.. McGill University; CanadáRoyal Society of Chemistry2012-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/54010Soulé, Ezequiel Rodolfo; Milette, Jonathan; Reven, Linda; Rey, Alejandro D.; Phase equilibrium and structure formation in gold nanoparticles - Nematic liquid crystal composites: Experiments and theory; Royal Society of Chemistry; Soft Matter; 8; 10; 3-2012; 2860-28661744-683XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1039/c2sm07091jinfo:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2012/SM/c2sm07091jinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-29T11:43:06Zoai:ri.conicet.gov.ar:11336/54010instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-29 11:43:06.36CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Phase equilibrium and structure formation in gold nanoparticles - Nematic liquid crystal composites: Experiments and theory
title Phase equilibrium and structure formation in gold nanoparticles - Nematic liquid crystal composites: Experiments and theory
spellingShingle Phase equilibrium and structure formation in gold nanoparticles - Nematic liquid crystal composites: Experiments and theory
Soulé, Ezequiel Rodolfo
Liquid Crystal
Thermodynamics
Phase Separation
Nanoparticles
title_short Phase equilibrium and structure formation in gold nanoparticles - Nematic liquid crystal composites: Experiments and theory
title_full Phase equilibrium and structure formation in gold nanoparticles - Nematic liquid crystal composites: Experiments and theory
title_fullStr Phase equilibrium and structure formation in gold nanoparticles - Nematic liquid crystal composites: Experiments and theory
title_full_unstemmed Phase equilibrium and structure formation in gold nanoparticles - Nematic liquid crystal composites: Experiments and theory
title_sort Phase equilibrium and structure formation in gold nanoparticles - Nematic liquid crystal composites: Experiments and theory
dc.creator.none.fl_str_mv Soulé, Ezequiel Rodolfo
Milette, Jonathan
Reven, Linda
Rey, Alejandro D.
author Soulé, Ezequiel Rodolfo
author_facet Soulé, Ezequiel Rodolfo
Milette, Jonathan
Reven, Linda
Rey, Alejandro D.
author_role author
author2 Milette, Jonathan
Reven, Linda
Rey, Alejandro D.
author2_role author
author
author
dc.subject.none.fl_str_mv Liquid Crystal
Thermodynamics
Phase Separation
Nanoparticles
topic Liquid Crystal
Thermodynamics
Phase Separation
Nanoparticles
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A theoretical and experimental study of mixtures of a calamitic nematic liquid crystal and gold nanoparticles capped with mixed monolayers (alkylic + mesogenic ligands) is presented. The effect of the ligand monolayer composition and nanoparticle concentration on the solubility in the isotropic phase and on the isotropic-nematic phase transition is studied. Mixed monolayers show the highest miscibility and lead to the formation of well-defined cellular networks. This behaviour is explained in terms of a mean-field thermodynamic model, in combination with a phenomenological expression for the isotropic interaction parameter that accounts for entropic and enthalpic effects of the mixed ligand monolayer. The final structure of the material is shown to be determined essentially by the phase equilibrium behaviour. © 2012 The Royal Society of Chemistry.
Fil: Soulé, Ezequiel Rodolfo. McGill University; Canadá. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Milette, Jonathan. McGill University; Canadá
Fil: Reven, Linda. McGill University; Canadá
Fil: Rey, Alejandro D.. McGill University; Canadá
description A theoretical and experimental study of mixtures of a calamitic nematic liquid crystal and gold nanoparticles capped with mixed monolayers (alkylic + mesogenic ligands) is presented. The effect of the ligand monolayer composition and nanoparticle concentration on the solubility in the isotropic phase and on the isotropic-nematic phase transition is studied. Mixed monolayers show the highest miscibility and lead to the formation of well-defined cellular networks. This behaviour is explained in terms of a mean-field thermodynamic model, in combination with a phenomenological expression for the isotropic interaction parameter that accounts for entropic and enthalpic effects of the mixed ligand monolayer. The final structure of the material is shown to be determined essentially by the phase equilibrium behaviour. © 2012 The Royal Society of Chemistry.
publishDate 2012
dc.date.none.fl_str_mv 2012-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/54010
Soulé, Ezequiel Rodolfo; Milette, Jonathan; Reven, Linda; Rey, Alejandro D.; Phase equilibrium and structure formation in gold nanoparticles - Nematic liquid crystal composites: Experiments and theory; Royal Society of Chemistry; Soft Matter; 8; 10; 3-2012; 2860-2866
1744-683X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/54010
identifier_str_mv Soulé, Ezequiel Rodolfo; Milette, Jonathan; Reven, Linda; Rey, Alejandro D.; Phase equilibrium and structure formation in gold nanoparticles - Nematic liquid crystal composites: Experiments and theory; Royal Society of Chemistry; Soft Matter; 8; 10; 3-2012; 2860-2866
1744-683X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1039/c2sm07091j
info:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2012/SM/c2sm07091j
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.10058

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