Bicontinuous and mixed gels in binary mixtures of patchy colloidal particles

Detalhes bibliográficos
Autor(a) principal: De Las Heras, Daniel
Data de Publicação: 2012
Outros Autores: Tavares, Jose, Gama, Margarida
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.21/5142
Resumo: We investigate the thermodynamics and percolation regimes of model binary mixtures of patchy colloidal particles. The particles of each species have three sites of two types, one of which promotes bonding of particles of the same species while the other promotes bonding of different species. We find up to four percolated structures at low temperatures and densities: two gels where only one species percolates, a mixed gel where particles of both species percolate but neither species percolates separately, and a bicontinuous gel where particles of both species percolate separately forming two interconnected networks. The competition between the entropy and the energy of bonding drives the stability of the different percolating structures. Appropriate mixtures exhibit one or more connectivity transitions between the mixed and bicontinuous gels, as the temperature and/or the composition changes.
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spelling Bicontinuous and mixed gels in binary mixtures of patchy colloidal particlesDirectional Attractive ForcesFluidsSpheresComplexSitesWe investigate the thermodynamics and percolation regimes of model binary mixtures of patchy colloidal particles. The particles of each species have three sites of two types, one of which promotes bonding of particles of the same species while the other promotes bonding of different species. We find up to four percolated structures at low temperatures and densities: two gels where only one species percolates, a mixed gel where particles of both species percolate but neither species percolates separately, and a bicontinuous gel where particles of both species percolate separately forming two interconnected networks. The competition between the entropy and the energy of bonding drives the stability of the different percolating structures. Appropriate mixtures exhibit one or more connectivity transitions between the mixed and bicontinuous gels, as the temperature and/or the composition changes.Royal Soc ChemistryRCIPLDe Las Heras, DanielTavares, JoseGama, Margarida2015-09-10T10:28:13Z20122012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfapplication/pdfhttp://hdl.handle.net/10400.21/5142engHERAS, D. de Las; TAVARES, J. M.; GAMA, M. M. T. da – Bicontinuous and mixed gels in binary mixtures of patchy colloidal particles. Soft Matter. ISSN: 1744-683X. Vol. 8, nr. 6 (2012), pp. 1785-1794.1744-683X10.1039/c1sm06948ametadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-03T09:48:08Zoai:repositorio.ipl.pt:10400.21/5142Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:14:27.806128Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Bicontinuous and mixed gels in binary mixtures of patchy colloidal particles
title Bicontinuous and mixed gels in binary mixtures of patchy colloidal particles
spellingShingle Bicontinuous and mixed gels in binary mixtures of patchy colloidal particles
De Las Heras, Daniel
Directional Attractive Forces
Fluids
Spheres
Complex
Sites
title_short Bicontinuous and mixed gels in binary mixtures of patchy colloidal particles
title_full Bicontinuous and mixed gels in binary mixtures of patchy colloidal particles
title_fullStr Bicontinuous and mixed gels in binary mixtures of patchy colloidal particles
title_full_unstemmed Bicontinuous and mixed gels in binary mixtures of patchy colloidal particles
title_sort Bicontinuous and mixed gels in binary mixtures of patchy colloidal particles
author De Las Heras, Daniel
author_facet De Las Heras, Daniel
Tavares, Jose
Gama, Margarida
author_role author
author2 Tavares, Jose
Gama, Margarida
author2_role author
author
dc.contributor.none.fl_str_mv RCIPL
dc.contributor.author.fl_str_mv De Las Heras, Daniel
Tavares, Jose
Gama, Margarida
dc.subject.por.fl_str_mv Directional Attractive Forces
Fluids
Spheres
Complex
Sites
topic Directional Attractive Forces
Fluids
Spheres
Complex
Sites
description We investigate the thermodynamics and percolation regimes of model binary mixtures of patchy colloidal particles. The particles of each species have three sites of two types, one of which promotes bonding of particles of the same species while the other promotes bonding of different species. We find up to four percolated structures at low temperatures and densities: two gels where only one species percolates, a mixed gel where particles of both species percolate but neither species percolates separately, and a bicontinuous gel where particles of both species percolate separately forming two interconnected networks. The competition between the entropy and the energy of bonding drives the stability of the different percolating structures. Appropriate mixtures exhibit one or more connectivity transitions between the mixed and bicontinuous gels, as the temperature and/or the composition changes.
publishDate 2012
dc.date.none.fl_str_mv 2012
2012-01-01T00:00:00Z
2015-09-10T10:28:13Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.21/5142
url http://hdl.handle.net/10400.21/5142
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv HERAS, D. de Las; TAVARES, J. M.; GAMA, M. M. T. da – Bicontinuous and mixed gels in binary mixtures of patchy colloidal particles. Soft Matter. ISSN: 1744-683X. Vol. 8, nr. 6 (2012), pp. 1785-1794.
1744-683X
10.1039/c1sm06948a
dc.rights.driver.fl_str_mv metadata only access
info:eu-repo/semantics/openAccess
rights_invalid_str_mv metadata only access
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Royal Soc Chemistry
publisher.none.fl_str_mv Royal Soc Chemistry
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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