Electrical Conductivity of Supercooled Aqueous Mixtures of Trehalose with Sodium Chloride

Autores
Miller, Danforth P.; Conrad, Paul B.; Fucito, Silvana; Corti, Horacio Roberto; de Pablo, Juan J.
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The viscosity and electrical conductivity of aqueous solutions of trehalose and other saccharides containing 1:1 electrolytes have been measured. The decrease in the molar conductivity of each of these electrolytes with increasing viscosity is less than that predicted by Walden's rule. Instead, the empirical relation Ληα = constant, which has already been found for other glass-forming liquids, holds for these mixtures. The microscopic origin of the deviation from the viscous friction model could be related to the presence of local heterogeneities in the distribution of water about the ions. This hypothesis is supported by the results of extensive molecular simulations. The temperature dependence of the Walden product of NaCl in aqueous trehalose mixtures indicates that this salt is fully dissociated close to the glass-transition temperature (Tg).
Fil: Miller, Danforth P.. University of Wisconsin; Estados Unidos
Fil: Conrad, Paul B.. University of Wisconsin; Estados Unidos
Fil: Fucito, Silvana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Corti, Horacio Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina. Universidad Nacional de San Martín; Argentina
Fil: de Pablo, Juan J.. University of Wisconsin; Estados Unidos
Materia
Trehalose
Nacl
Conductivity
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:11336/71617
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Electrical Conductivity of Supercooled Aqueous Mixtures of Trehalose with Sodium ChlorideMiller, Danforth P.Conrad, Paul B.Fucito, SilvanaCorti, Horacio Robertode Pablo, Juan J.TrehaloseNaclConductivityhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The viscosity and electrical conductivity of aqueous solutions of trehalose and other saccharides containing 1:1 electrolytes have been measured. The decrease in the molar conductivity of each of these electrolytes with increasing viscosity is less than that predicted by Walden's rule. Instead, the empirical relation Ληα = constant, which has already been found for other glass-forming liquids, holds for these mixtures. The microscopic origin of the deviation from the viscous friction model could be related to the presence of local heterogeneities in the distribution of water about the ions. This hypothesis is supported by the results of extensive molecular simulations. The temperature dependence of the Walden product of NaCl in aqueous trehalose mixtures indicates that this salt is fully dissociated close to the glass-transition temperature (Tg).Fil: Miller, Danforth P.. University of Wisconsin; Estados UnidosFil: Conrad, Paul B.. University of Wisconsin; Estados UnidosFil: Fucito, Silvana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; ArgentinaFil: Corti, Horacio Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina. Universidad Nacional de San Martín; ArgentinaFil: de Pablo, Juan J.. University of Wisconsin; Estados UnidosAmerican Chemical Society2000-11info: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/11336/71617Miller, Danforth P.; Conrad, Paul B.; Fucito, Silvana; Corti, Horacio Roberto; de Pablo, Juan J.; Electrical Conductivity of Supercooled Aqueous Mixtures of Trehalose with Sodium Chloride; American Chemical Society; Journal of Physical Chemistry B; 104; 44; 11-2000; 10419-104251520-6106CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/jp000730tinfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/jp000730tinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-26T08:59:05Zoai:ri.conicet.gov.ar:11336/71617instacron: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:34982025-11-26 08:59:05.559CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electrical Conductivity of Supercooled Aqueous Mixtures of Trehalose with Sodium Chloride
title Electrical Conductivity of Supercooled Aqueous Mixtures of Trehalose with Sodium Chloride
spellingShingle Electrical Conductivity of Supercooled Aqueous Mixtures of Trehalose with Sodium Chloride
Miller, Danforth P.
Trehalose
Nacl
Conductivity
title_short Electrical Conductivity of Supercooled Aqueous Mixtures of Trehalose with Sodium Chloride
title_full Electrical Conductivity of Supercooled Aqueous Mixtures of Trehalose with Sodium Chloride
title_fullStr Electrical Conductivity of Supercooled Aqueous Mixtures of Trehalose with Sodium Chloride
title_full_unstemmed Electrical Conductivity of Supercooled Aqueous Mixtures of Trehalose with Sodium Chloride
title_sort Electrical Conductivity of Supercooled Aqueous Mixtures of Trehalose with Sodium Chloride
dc.creator.none.fl_str_mv Miller, Danforth P.
Conrad, Paul B.
Fucito, Silvana
Corti, Horacio Roberto
de Pablo, Juan J.
author Miller, Danforth P.
author_facet Miller, Danforth P.
Conrad, Paul B.
Fucito, Silvana
Corti, Horacio Roberto
de Pablo, Juan J.
author_role author
author2 Conrad, Paul B.
Fucito, Silvana
Corti, Horacio Roberto
de Pablo, Juan J.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Trehalose
Nacl
Conductivity
topic Trehalose
Nacl
Conductivity
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The viscosity and electrical conductivity of aqueous solutions of trehalose and other saccharides containing 1:1 electrolytes have been measured. The decrease in the molar conductivity of each of these electrolytes with increasing viscosity is less than that predicted by Walden's rule. Instead, the empirical relation Ληα = constant, which has already been found for other glass-forming liquids, holds for these mixtures. The microscopic origin of the deviation from the viscous friction model could be related to the presence of local heterogeneities in the distribution of water about the ions. This hypothesis is supported by the results of extensive molecular simulations. The temperature dependence of the Walden product of NaCl in aqueous trehalose mixtures indicates that this salt is fully dissociated close to the glass-transition temperature (Tg).
Fil: Miller, Danforth P.. University of Wisconsin; Estados Unidos
Fil: Conrad, Paul B.. University of Wisconsin; Estados Unidos
Fil: Fucito, Silvana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Corti, Horacio Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina. Universidad Nacional de San Martín; Argentina
Fil: de Pablo, Juan J.. University of Wisconsin; Estados Unidos
description The viscosity and electrical conductivity of aqueous solutions of trehalose and other saccharides containing 1:1 electrolytes have been measured. The decrease in the molar conductivity of each of these electrolytes with increasing viscosity is less than that predicted by Walden's rule. Instead, the empirical relation Ληα = constant, which has already been found for other glass-forming liquids, holds for these mixtures. The microscopic origin of the deviation from the viscous friction model could be related to the presence of local heterogeneities in the distribution of water about the ions. This hypothesis is supported by the results of extensive molecular simulations. The temperature dependence of the Walden product of NaCl in aqueous trehalose mixtures indicates that this salt is fully dissociated close to the glass-transition temperature (Tg).
publishDate 2000
dc.date.none.fl_str_mv 2000-11
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/11336/71617
Miller, Danforth P.; Conrad, Paul B.; Fucito, Silvana; Corti, Horacio Roberto; de Pablo, Juan J.; Electrical Conductivity of Supercooled Aqueous Mixtures of Trehalose with Sodium Chloride; American Chemical Society; Journal of Physical Chemistry B; 104; 44; 11-2000; 10419-10425
1520-6106
CONICET Digital
CONICET
url http://hdl.handle.net/11336/71617
identifier_str_mv Miller, Danforth P.; Conrad, Paul B.; Fucito, Silvana; Corti, Horacio Roberto; de Pablo, Juan J.; Electrical Conductivity of Supercooled Aqueous Mixtures of Trehalose with Sodium Chloride; American Chemical Society; Journal of Physical Chemistry B; 104; 44; 11-2000; 10419-10425
1520-6106
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/jp000730t
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/jp000730t
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 American Chemical Society
publisher.none.fl_str_mv American Chemical Society
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
_version_ 1849873296100687872
score 13.011256

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