Generation of large and locally aligned wormlike micelles in block copolymer/epoxy blends

Autores
Leonardi, Agustina Belen; Zucchi, Ileana Alicia; Williams, Roberto Juan Jose
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A dispersion of wormlike micelles, empirically found in some block copolymer (BCP) / epoxy blends, has been reported to produce a significant toughening of epoxy networks. In this study, a rationale procedure to generate and trap large and locally aligned wormlike micelles in an epoxy matrix is reported. A BCP / epoxy / hardener blend was selected that was homogeneous at the polymerization temperature but became nanostructured in the course of polymerization leading to hexagonally packed cylinders (HPC) domains. When a similar BCP with a molar mass about three times larger than the first one and with the same ratio between blocks was used, the nanostructuration into HPC domains was frustrated by diffusional limitations of the large cylindrical micelles generated. A morphology consisting of a dispersion of large and locally aligned wormlike micelles was trapped in the cross-linked epoxy. The selected BCP was polystyrene (PS)-b-poly(ethylene oxide) (PEO), with molar masses M = 43 kDa or 136 kDa and a mass fraction of PEO close to 25 wt %. The network precursors were based on diglycidylether of bisphenol A (DGEBA) and 4,4´-methylenebis(2,6-diethylaniline) (MDEA). Low- and high-molar-mass BCP generated, respectively, HPC domains and wormlike micelles, as supported by TEM images and SAXS spectra.
Fil: Leonardi, Agustina Belen. 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: Zucchi, Ileana Alicia. 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: Williams, Roberto Juan Jose. 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
Materia
Block Copolymer
Hexagonally Packed Cylinders
Polymerization-Induced Self-Assembly
Ps-B-Peo/Epoxy
Wormlike Micelles
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/5865
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/5865
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Generation of large and locally aligned wormlike micelles in block copolymer/epoxy blendsLeonardi, Agustina BelenZucchi, Ileana AliciaWilliams, Roberto Juan JoseBlock CopolymerHexagonally Packed CylindersPolymerization-Induced Self-AssemblyPs-B-Peo/EpoxyWormlike Micelleshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1https://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2A dispersion of wormlike micelles, empirically found in some block copolymer (BCP) / epoxy blends, has been reported to produce a significant toughening of epoxy networks. In this study, a rationale procedure to generate and trap large and locally aligned wormlike micelles in an epoxy matrix is reported. A BCP / epoxy / hardener blend was selected that was homogeneous at the polymerization temperature but became nanostructured in the course of polymerization leading to hexagonally packed cylinders (HPC) domains. When a similar BCP with a molar mass about three times larger than the first one and with the same ratio between blocks was used, the nanostructuration into HPC domains was frustrated by diffusional limitations of the large cylindrical micelles generated. A morphology consisting of a dispersion of large and locally aligned wormlike micelles was trapped in the cross-linked epoxy. The selected BCP was polystyrene (PS)-b-poly(ethylene oxide) (PEO), with molar masses M = 43 kDa or 136 kDa and a mass fraction of PEO close to 25 wt %. The network precursors were based on diglycidylether of bisphenol A (DGEBA) and 4,4´-methylenebis(2,6-diethylaniline) (MDEA). Low- and high-molar-mass BCP generated, respectively, HPC domains and wormlike micelles, as supported by TEM images and SAXS spectra.Fil: Leonardi, Agustina Belen. 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: Zucchi, Ileana Alicia. 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: Williams, Roberto Juan Jose. 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; ArgentinaElsevier2014-11-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5865Leonardi, Agustina Belen; Zucchi, Ileana Alicia; Williams, Roberto Juan Jose; Generation of large and locally aligned wormlike micelles in block copolymer/epoxy blends; Elsevier; European Polymer Journal; 65; 7-11-2014; 202-2080014-3057enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0014305714003760info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/url/https://doi.org/10.1016/j.eurpolymj.2014.11.001info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:48:36Zoai:ri.conicet.gov.ar:11336/5865instacron: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 14:48:36.798CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Generation of large and locally aligned wormlike micelles in block copolymer/epoxy blends
title Generation of large and locally aligned wormlike micelles in block copolymer/epoxy blends
spellingShingle Generation of large and locally aligned wormlike micelles in block copolymer/epoxy blends
Leonardi, Agustina Belen
Block Copolymer
Hexagonally Packed Cylinders
Polymerization-Induced Self-Assembly
Ps-B-Peo/Epoxy
Wormlike Micelles
title_short Generation of large and locally aligned wormlike micelles in block copolymer/epoxy blends
title_full Generation of large and locally aligned wormlike micelles in block copolymer/epoxy blends
title_fullStr Generation of large and locally aligned wormlike micelles in block copolymer/epoxy blends
title_full_unstemmed Generation of large and locally aligned wormlike micelles in block copolymer/epoxy blends
title_sort Generation of large and locally aligned wormlike micelles in block copolymer/epoxy blends
dc.creator.none.fl_str_mv Leonardi, Agustina Belen
Zucchi, Ileana Alicia
Williams, Roberto Juan Jose
author Leonardi, Agustina Belen
author_facet Leonardi, Agustina Belen
Zucchi, Ileana Alicia
Williams, Roberto Juan Jose
author_role author
author2 Zucchi, Ileana Alicia
Williams, Roberto Juan Jose
author2_role author
author
dc.subject.none.fl_str_mv Block Copolymer
Hexagonally Packed Cylinders
Polymerization-Induced Self-Assembly
Ps-B-Peo/Epoxy
Wormlike Micelles
topic Block Copolymer
Hexagonally Packed Cylinders
Polymerization-Induced Self-Assembly
Ps-B-Peo/Epoxy
Wormlike Micelles
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A dispersion of wormlike micelles, empirically found in some block copolymer (BCP) / epoxy blends, has been reported to produce a significant toughening of epoxy networks. In this study, a rationale procedure to generate and trap large and locally aligned wormlike micelles in an epoxy matrix is reported. A BCP / epoxy / hardener blend was selected that was homogeneous at the polymerization temperature but became nanostructured in the course of polymerization leading to hexagonally packed cylinders (HPC) domains. When a similar BCP with a molar mass about three times larger than the first one and with the same ratio between blocks was used, the nanostructuration into HPC domains was frustrated by diffusional limitations of the large cylindrical micelles generated. A morphology consisting of a dispersion of large and locally aligned wormlike micelles was trapped in the cross-linked epoxy. The selected BCP was polystyrene (PS)-b-poly(ethylene oxide) (PEO), with molar masses M = 43 kDa or 136 kDa and a mass fraction of PEO close to 25 wt %. The network precursors were based on diglycidylether of bisphenol A (DGEBA) and 4,4´-methylenebis(2,6-diethylaniline) (MDEA). Low- and high-molar-mass BCP generated, respectively, HPC domains and wormlike micelles, as supported by TEM images and SAXS spectra.
Fil: Leonardi, Agustina Belen. 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: Zucchi, Ileana Alicia. 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: Williams, Roberto Juan Jose. 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
description A dispersion of wormlike micelles, empirically found in some block copolymer (BCP) / epoxy blends, has been reported to produce a significant toughening of epoxy networks. In this study, a rationale procedure to generate and trap large and locally aligned wormlike micelles in an epoxy matrix is reported. A BCP / epoxy / hardener blend was selected that was homogeneous at the polymerization temperature but became nanostructured in the course of polymerization leading to hexagonally packed cylinders (HPC) domains. When a similar BCP with a molar mass about three times larger than the first one and with the same ratio between blocks was used, the nanostructuration into HPC domains was frustrated by diffusional limitations of the large cylindrical micelles generated. A morphology consisting of a dispersion of large and locally aligned wormlike micelles was trapped in the cross-linked epoxy. The selected BCP was polystyrene (PS)-b-poly(ethylene oxide) (PEO), with molar masses M = 43 kDa or 136 kDa and a mass fraction of PEO close to 25 wt %. The network precursors were based on diglycidylether of bisphenol A (DGEBA) and 4,4´-methylenebis(2,6-diethylaniline) (MDEA). Low- and high-molar-mass BCP generated, respectively, HPC domains and wormlike micelles, as supported by TEM images and SAXS spectra.
publishDate 2014
dc.date.none.fl_str_mv 2014-11-07
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/11336/5865
Leonardi, Agustina Belen; Zucchi, Ileana Alicia; Williams, Roberto Juan Jose; Generation of large and locally aligned wormlike micelles in block copolymer/epoxy blends; Elsevier; European Polymer Journal; 65; 7-11-2014; 202-208
0014-3057
url http://hdl.handle.net/11336/5865
identifier_str_mv Leonardi, Agustina Belen; Zucchi, Ileana Alicia; Williams, Roberto Juan Jose; Generation of large and locally aligned wormlike micelles in block copolymer/epoxy blends; Elsevier; European Polymer Journal; 65; 7-11-2014; 202-208
0014-3057
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0014305714003760
info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/url/https://doi.org/10.1016/j.eurpolymj.2014.11.001
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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 13.22299

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