Dynamics of transient metastable states in mixtures under coupled phase ordering and chemical demixing

Autores
Soulé, Ezequiel Rodolfo; Rey, Alejandro D.
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present theory and simulation of simultaneous chemical demixing and phase ordering in a polymer-liquid crystal mixture in conditions where isotropic-isotropic phase separation is metastable with respect to isotropic-nematic phase transition. In the case the mechanism is nucleation and growth, it is found that mesophase growth proceeds by a transient metastable phase that surround the ordered phase, and whose lifetime is a function of the ratio of diffusional to orientational mobilities. In the case of spinodal decomposition, different dynamic regimes are observed depending on the mobility ratio: metastable phase separation preceding phase ordering, phase ordering preceding phase separation, or simultaneous phase ordering and phase separation. Not only the overall dynamics but also the final structure of the material can be different for each kinetic regime.
Fil: Soulé, Ezequiel Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Rey, Alejandro D.. McGill University; Canadá
Materia
PHASE TRANSITION
METASTABLE STATES
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:11336/8588
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Dynamics of transient metastable states in mixtures under coupled phase ordering and chemical demixingSoulé, Ezequiel RodolfoRey, Alejandro D.PHASE TRANSITIONMETASTABLE STATEShttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1We present theory and simulation of simultaneous chemical demixing and phase ordering in a polymer-liquid crystal mixture in conditions where isotropic-isotropic phase separation is metastable with respect to isotropic-nematic phase transition. In the case the mechanism is nucleation and growth, it is found that mesophase growth proceeds by a transient metastable phase that surround the ordered phase, and whose lifetime is a function of the ratio of diffusional to orientational mobilities. In the case of spinodal decomposition, different dynamic regimes are observed depending on the mobility ratio: metastable phase separation preceding phase ordering, phase ordering preceding phase separation, or simultaneous phase ordering and phase separation. Not only the overall dynamics but also the final structure of the material can be different for each kinetic regime.Fil: Soulé, Ezequiel Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Rey, Alejandro D.. McGill University; CanadáIop Publishing2011-10-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/8588Soulé, Ezequiel Rodolfo; Rey, Alejandro D.; Dynamics of transient metastable states in mixtures under coupled phase ordering and chemical demixing; Iop Publishing; European Journal Of Physics; 83; 3; 12-10-2011; 357-3670143-0807enginfo:eu-repo/semantics/altIdentifier/url/http://epjb.epj.org/articles/epjb/abs/2011/18/b110375/b110375.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.1140/epjb/e2011-20375-7info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1310.8647v1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:37:00Zoai:ri.conicet.gov.ar:11336/8588instacron: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:34982025-09-29 10:37:00.86CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dynamics of transient metastable states in mixtures under coupled phase ordering and chemical demixing
title Dynamics of transient metastable states in mixtures under coupled phase ordering and chemical demixing
spellingShingle Dynamics of transient metastable states in mixtures under coupled phase ordering and chemical demixing
Soulé, Ezequiel Rodolfo
PHASE TRANSITION
METASTABLE STATES
title_short Dynamics of transient metastable states in mixtures under coupled phase ordering and chemical demixing
title_full Dynamics of transient metastable states in mixtures under coupled phase ordering and chemical demixing
title_fullStr Dynamics of transient metastable states in mixtures under coupled phase ordering and chemical demixing
title_full_unstemmed Dynamics of transient metastable states in mixtures under coupled phase ordering and chemical demixing
title_sort Dynamics of transient metastable states in mixtures under coupled phase ordering and chemical demixing
dc.creator.none.fl_str_mv Soulé, Ezequiel Rodolfo
Rey, Alejandro D.
author Soulé, Ezequiel Rodolfo
author_facet Soulé, Ezequiel Rodolfo
Rey, Alejandro D.
author_role author
author2 Rey, Alejandro D.
author2_role author
dc.subject.none.fl_str_mv PHASE TRANSITION
METASTABLE STATES
topic PHASE TRANSITION
METASTABLE STATES
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present theory and simulation of simultaneous chemical demixing and phase ordering in a polymer-liquid crystal mixture in conditions where isotropic-isotropic phase separation is metastable with respect to isotropic-nematic phase transition. In the case the mechanism is nucleation and growth, it is found that mesophase growth proceeds by a transient metastable phase that surround the ordered phase, and whose lifetime is a function of the ratio of diffusional to orientational mobilities. In the case of spinodal decomposition, different dynamic regimes are observed depending on the mobility ratio: metastable phase separation preceding phase ordering, phase ordering preceding phase separation, or simultaneous phase ordering and phase separation. Not only the overall dynamics but also the final structure of the material can be different for each kinetic regime.
Fil: Soulé, Ezequiel Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Rey, Alejandro D.. McGill University; Canadá
description We present theory and simulation of simultaneous chemical demixing and phase ordering in a polymer-liquid crystal mixture in conditions where isotropic-isotropic phase separation is metastable with respect to isotropic-nematic phase transition. In the case the mechanism is nucleation and growth, it is found that mesophase growth proceeds by a transient metastable phase that surround the ordered phase, and whose lifetime is a function of the ratio of diffusional to orientational mobilities. In the case of spinodal decomposition, different dynamic regimes are observed depending on the mobility ratio: metastable phase separation preceding phase ordering, phase ordering preceding phase separation, or simultaneous phase ordering and phase separation. Not only the overall dynamics but also the final structure of the material can be different for each kinetic regime.
publishDate 2011
dc.date.none.fl_str_mv 2011-10-12
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/11336/8588
Soulé, Ezequiel Rodolfo; Rey, Alejandro D.; Dynamics of transient metastable states in mixtures under coupled phase ordering and chemical demixing; Iop Publishing; European Journal Of Physics; 83; 3; 12-10-2011; 357-367
0143-0807
url http://hdl.handle.net/11336/8588
identifier_str_mv Soulé, Ezequiel Rodolfo; Rey, Alejandro D.; Dynamics of transient metastable states in mixtures under coupled phase ordering and chemical demixing; Iop Publishing; European Journal Of Physics; 83; 3; 12-10-2011; 357-367
0143-0807
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://epjb.epj.org/articles/epjb/abs/2011/18/b110375/b110375.html
info:eu-repo/semantics/altIdentifier/doi/10.1140/epjb/e2011-20375-7
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1310.8647v1
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
application/pdf
dc.publisher.none.fl_str_mv Iop Publishing
publisher.none.fl_str_mv Iop Publishing
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 13.070432

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