Intermolecular interactions on amine-cured epoxy matrices with different crosslink densities. influence on the hole and specific volumes and the mechanical behavior

Autores
Blanco, M.; Ramos, J.A.; Goyanes, Silvia Nair; Rubiolo, Gerardo Hector; Salgueiro, Walter Alberto; Somoza, Alberto Horacio; Mondragon, I.
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The architecture of an epoxy matrix was modified by curing the resin with mono-/diamine mixtures having identical chemical structures. Both hole volume and specific volume variations were studied by positron annihilation lifetime spec-troscopy and pressure-volume-temperature/density measurements, respectively. The average hole volume of the networks at room temperature slightly increased when the monoaminic chain extender content increased. The increment in the intermolecu-lar interactions between functional groups of the networks chains, ([0-9]{4})ue to the less hindered nitrogen introduced by the monoamine, appears to be the responsible for the observed behavior. Besides, only small variations on the specific volume were observed on increasing the monoamine content, which points out that for a cured epoxy system, the chemical structure of the curing agent is mainly responsible for chain packing in the networks. On the other hand, intermolecular interactions between chains were considered as the key factor for fixing stiffness and strength. Thus, it was observed that the increase of the intermolecular interactions with the monoamine content produced a decrease in the sub-Tgsmall-range cooperative motions, which increased the low-deformation mechanical properties at temperatures between b and a relaxations. This conclusion could be applied to previous investigations with epoxy matrices not fully crosslinked (nonstoichiometric or noncompletely cured formulations). Finally, it was found that fracture properties do not significantly depend either on the hole volume or on the intermolecular interactions. Fracture properties are more dependent on the crosslink density and the glass transition temperature. © 2009 Wiley Periodicals, Inc.
Fil: Blanco, M.. Universidad del País Vasco; España
Fil: Ramos, J.A.. Universidad del País Vasco; España
Fil: Goyanes, Silvia Nair. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Rubiolo, Gerardo Hector. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Salgueiro, Walter Alberto. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina
Fil: Somoza, Alberto Horacio. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Mondragon, I.. Universidad del País Vasco; España
Materia
Crosslink Density
Crosslinking
Intermolecular Interactions
Microstructure-Properties Relationships
Positron Annihilation Lifetime Spectroscopy
Thermosets
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:11336/61370
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/61370
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Intermolecular interactions on amine-cured epoxy matrices with different crosslink densities. influence on the hole and specific volumes and the mechanical behaviorBlanco, M.Ramos, J.A.Goyanes, Silvia NairRubiolo, Gerardo HectorSalgueiro, Walter AlbertoSomoza, Alberto HoracioMondragon, I.Crosslink DensityCrosslinkingIntermolecular InteractionsMicrostructure-Properties RelationshipsPositron Annihilation Lifetime SpectroscopyThermosetshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The architecture of an epoxy matrix was modified by curing the resin with mono-/diamine mixtures having identical chemical structures. Both hole volume and specific volume variations were studied by positron annihilation lifetime spec-troscopy and pressure-volume-temperature/density measurements, respectively. The average hole volume of the networks at room temperature slightly increased when the monoaminic chain extender content increased. The increment in the intermolecu-lar interactions between functional groups of the networks chains, ([0-9]{4})ue to the less hindered nitrogen introduced by the monoamine, appears to be the responsible for the observed behavior. Besides, only small variations on the specific volume were observed on increasing the monoamine content, which points out that for a cured epoxy system, the chemical structure of the curing agent is mainly responsible for chain packing in the networks. On the other hand, intermolecular interactions between chains were considered as the key factor for fixing stiffness and strength. Thus, it was observed that the increase of the intermolecular interactions with the monoamine content produced a decrease in the sub-Tgsmall-range cooperative motions, which increased the low-deformation mechanical properties at temperatures between b and a relaxations. This conclusion could be applied to previous investigations with epoxy matrices not fully crosslinked (nonstoichiometric or noncompletely cured formulations). Finally, it was found that fracture properties do not significantly depend either on the hole volume or on the intermolecular interactions. Fracture properties are more dependent on the crosslink density and the glass transition temperature. © 2009 Wiley Periodicals, Inc.Fil: Blanco, M.. Universidad del País Vasco; EspañaFil: Ramos, J.A.. Universidad del País Vasco; EspañaFil: Goyanes, Silvia Nair. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Rubiolo, Gerardo Hector. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Salgueiro, Walter Alberto. Universidad Nacional del Centro de la Provincia de Buenos Aires; ArgentinaFil: Somoza, Alberto Horacio. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Mondragon, I.. Universidad del País Vasco; EspañaJohn Wiley & Sons Inc2009-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/61370Blanco, M.; Ramos, J.A.; Goyanes, Silvia Nair; Rubiolo, Gerardo Hector; Salgueiro, Walter Alberto; et al.; Intermolecular interactions on amine-cured epoxy matrices with different crosslink densities. influence on the hole and specific volumes and the mechanical behavior; John Wiley & Sons Inc; Journal of Polymer Science Part B: Polymer Physics; 47; 13; 7-2009; 1240-12520887-6266CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/polb.21729info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:26:21Zoai:ri.conicet.gov.ar:11336/61370instacron: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:34982025-10-15 15:26:21.768CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Intermolecular interactions on amine-cured epoxy matrices with different crosslink densities. influence on the hole and specific volumes and the mechanical behavior
title Intermolecular interactions on amine-cured epoxy matrices with different crosslink densities. influence on the hole and specific volumes and the mechanical behavior
spellingShingle Intermolecular interactions on amine-cured epoxy matrices with different crosslink densities. influence on the hole and specific volumes and the mechanical behavior
Blanco, M.
Crosslink Density
Crosslinking
Intermolecular Interactions
Microstructure-Properties Relationships
Positron Annihilation Lifetime Spectroscopy
Thermosets
title_short Intermolecular interactions on amine-cured epoxy matrices with different crosslink densities. influence on the hole and specific volumes and the mechanical behavior
title_full Intermolecular interactions on amine-cured epoxy matrices with different crosslink densities. influence on the hole and specific volumes and the mechanical behavior
title_fullStr Intermolecular interactions on amine-cured epoxy matrices with different crosslink densities. influence on the hole and specific volumes and the mechanical behavior
title_full_unstemmed Intermolecular interactions on amine-cured epoxy matrices with different crosslink densities. influence on the hole and specific volumes and the mechanical behavior
title_sort Intermolecular interactions on amine-cured epoxy matrices with different crosslink densities. influence on the hole and specific volumes and the mechanical behavior
dc.creator.none.fl_str_mv Blanco, M.
Ramos, J.A.
Goyanes, Silvia Nair
Rubiolo, Gerardo Hector
Salgueiro, Walter Alberto
Somoza, Alberto Horacio
Mondragon, I.
author Blanco, M.
author_facet Blanco, M.
Ramos, J.A.
Goyanes, Silvia Nair
Rubiolo, Gerardo Hector
Salgueiro, Walter Alberto
Somoza, Alberto Horacio
Mondragon, I.
author_role author
author2 Ramos, J.A.
Goyanes, Silvia Nair
Rubiolo, Gerardo Hector
Salgueiro, Walter Alberto
Somoza, Alberto Horacio
Mondragon, I.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Crosslink Density
Crosslinking
Intermolecular Interactions
Microstructure-Properties Relationships
Positron Annihilation Lifetime Spectroscopy
Thermosets
topic Crosslink Density
Crosslinking
Intermolecular Interactions
Microstructure-Properties Relationships
Positron Annihilation Lifetime Spectroscopy
Thermosets
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The architecture of an epoxy matrix was modified by curing the resin with mono-/diamine mixtures having identical chemical structures. Both hole volume and specific volume variations were studied by positron annihilation lifetime spec-troscopy and pressure-volume-temperature/density measurements, respectively. The average hole volume of the networks at room temperature slightly increased when the monoaminic chain extender content increased. The increment in the intermolecu-lar interactions between functional groups of the networks chains, ([0-9]{4})ue to the less hindered nitrogen introduced by the monoamine, appears to be the responsible for the observed behavior. Besides, only small variations on the specific volume were observed on increasing the monoamine content, which points out that for a cured epoxy system, the chemical structure of the curing agent is mainly responsible for chain packing in the networks. On the other hand, intermolecular interactions between chains were considered as the key factor for fixing stiffness and strength. Thus, it was observed that the increase of the intermolecular interactions with the monoamine content produced a decrease in the sub-Tgsmall-range cooperative motions, which increased the low-deformation mechanical properties at temperatures between b and a relaxations. This conclusion could be applied to previous investigations with epoxy matrices not fully crosslinked (nonstoichiometric or noncompletely cured formulations). Finally, it was found that fracture properties do not significantly depend either on the hole volume or on the intermolecular interactions. Fracture properties are more dependent on the crosslink density and the glass transition temperature. © 2009 Wiley Periodicals, Inc.
Fil: Blanco, M.. Universidad del País Vasco; España
Fil: Ramos, J.A.. Universidad del País Vasco; España
Fil: Goyanes, Silvia Nair. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Rubiolo, Gerardo Hector. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Salgueiro, Walter Alberto. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina
Fil: Somoza, Alberto Horacio. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Mondragon, I.. Universidad del País Vasco; España
description The architecture of an epoxy matrix was modified by curing the resin with mono-/diamine mixtures having identical chemical structures. Both hole volume and specific volume variations were studied by positron annihilation lifetime spec-troscopy and pressure-volume-temperature/density measurements, respectively. The average hole volume of the networks at room temperature slightly increased when the monoaminic chain extender content increased. The increment in the intermolecu-lar interactions between functional groups of the networks chains, ([0-9]{4})ue to the less hindered nitrogen introduced by the monoamine, appears to be the responsible for the observed behavior. Besides, only small variations on the specific volume were observed on increasing the monoamine content, which points out that for a cured epoxy system, the chemical structure of the curing agent is mainly responsible for chain packing in the networks. On the other hand, intermolecular interactions between chains were considered as the key factor for fixing stiffness and strength. Thus, it was observed that the increase of the intermolecular interactions with the monoamine content produced a decrease in the sub-Tgsmall-range cooperative motions, which increased the low-deformation mechanical properties at temperatures between b and a relaxations. This conclusion could be applied to previous investigations with epoxy matrices not fully crosslinked (nonstoichiometric or noncompletely cured formulations). Finally, it was found that fracture properties do not significantly depend either on the hole volume or on the intermolecular interactions. Fracture properties are more dependent on the crosslink density and the glass transition temperature. © 2009 Wiley Periodicals, Inc.
publishDate 2009
dc.date.none.fl_str_mv 2009-07
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/11336/61370
Blanco, M.; Ramos, J.A.; Goyanes, Silvia Nair; Rubiolo, Gerardo Hector; Salgueiro, Walter Alberto; et al.; Intermolecular interactions on amine-cured epoxy matrices with different crosslink densities. influence on the hole and specific volumes and the mechanical behavior; John Wiley & Sons Inc; Journal of Polymer Science Part B: Polymer Physics; 47; 13; 7-2009; 1240-1252
0887-6266
CONICET Digital
CONICET
url http://hdl.handle.net/11336/61370
identifier_str_mv Blanco, M.; Ramos, J.A.; Goyanes, Silvia Nair; Rubiolo, Gerardo Hector; Salgueiro, Walter Alberto; et al.; Intermolecular interactions on amine-cured epoxy matrices with different crosslink densities. influence on the hole and specific volumes and the mechanical behavior; John Wiley & Sons Inc; Journal of Polymer Science Part B: Polymer Physics; 47; 13; 7-2009; 1240-1252
0887-6266
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/polb.21729
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
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application/pdf
application/pdf
application/pdf
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application/pdf
application/pdf
dc.publisher.none.fl_str_mv John Wiley & Sons Inc
publisher.none.fl_str_mv John Wiley & Sons Inc
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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