Visible-light photopolymerization of DGEBA promoted by silsesquioxanes functionalized with cycloaliphatic epoxy groups

Autores
Dell'erba, Ignacio Esteban; Arenas, Gustavo Francisco; Schroeder, Walter Fabian
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Diglycidyl ether of bisphenol A (DGEBA) is among the most popular and widely used epoxy monomers. This monomer is commonly used in thermal network polymerizations with amines, phenols, isocyanates or mercaptans as curing agents. However, the photoinitiated polymerization of DGEBA is very sluggish and hence finds little use in high-speed photocuring applications. In this contribution, we demonstrated that this monomer can undergo very fast visible-light photopolymerization when combined with a silsesquioxane (SSO) functionalized with reactive epoxycyclohexane groups. The SSO was synthesized via alkoxysilane hydrolysis/condensation chemistry, using DGEBA as a solvent. We found that the photopolymerization of DGEBA is markedly accelerated as the amount of SSO in the mixture is increased. The promoter effect on the reactivity of DGEBA was ascribed to a combination of both thermal and copolymerization effects. Using dynamic mechanical analysis, we demonstrated that the resulting hybrid materials present a single-phase network structure, where the SSO species function as highly multifunctional epoxy reactants.
Fil: Dell'erba, Ignacio Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Arenas, Gustavo Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Departamento de Física; Argentina
Fil: Schroeder, Walter Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Materia
Epoxy Networks
Photoinitiated Cationic Polymerization
Silsesquioxanes
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:11336/39642
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Visible-light photopolymerization of DGEBA promoted by silsesquioxanes functionalized with cycloaliphatic epoxy groupsDell'erba, Ignacio EstebanArenas, Gustavo FranciscoSchroeder, Walter FabianEpoxy NetworksPhotoinitiated Cationic PolymerizationSilsesquioxanesDiglycidyl ether of bisphenol A (DGEBA) is among the most popular and widely used epoxy monomers. This monomer is commonly used in thermal network polymerizations with amines, phenols, isocyanates or mercaptans as curing agents. However, the photoinitiated polymerization of DGEBA is very sluggish and hence finds little use in high-speed photocuring applications. In this contribution, we demonstrated that this monomer can undergo very fast visible-light photopolymerization when combined with a silsesquioxane (SSO) functionalized with reactive epoxycyclohexane groups. The SSO was synthesized via alkoxysilane hydrolysis/condensation chemistry, using DGEBA as a solvent. We found that the photopolymerization of DGEBA is markedly accelerated as the amount of SSO in the mixture is increased. The promoter effect on the reactivity of DGEBA was ascribed to a combination of both thermal and copolymerization effects. Using dynamic mechanical analysis, we demonstrated that the resulting hybrid materials present a single-phase network structure, where the SSO species function as highly multifunctional epoxy reactants.Fil: Dell'erba, Ignacio Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Arenas, Gustavo Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Departamento de Física; ArgentinaFil: Schroeder, Walter Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaElsevier2016-01info: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/11336/39642Dell'erba, Ignacio Esteban; Arenas, Gustavo Francisco; Schroeder, Walter Fabian; Visible-light photopolymerization of DGEBA promoted by silsesquioxanes functionalized with cycloaliphatic epoxy groups; Elsevier; Polymer; 83; 1-2016; 172-1810032-3861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.polymer.2015.12.013info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0032386115304262info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:50:08Zoai:ri.conicet.gov.ar:11336/39642instacron: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:34982025-09-03 09:50:08.888CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Visible-light photopolymerization of DGEBA promoted by silsesquioxanes functionalized with cycloaliphatic epoxy groups
title Visible-light photopolymerization of DGEBA promoted by silsesquioxanes functionalized with cycloaliphatic epoxy groups
spellingShingle Visible-light photopolymerization of DGEBA promoted by silsesquioxanes functionalized with cycloaliphatic epoxy groups
Dell'erba, Ignacio Esteban
Epoxy Networks
Photoinitiated Cationic Polymerization
Silsesquioxanes
title_short Visible-light photopolymerization of DGEBA promoted by silsesquioxanes functionalized with cycloaliphatic epoxy groups
title_full Visible-light photopolymerization of DGEBA promoted by silsesquioxanes functionalized with cycloaliphatic epoxy groups
title_fullStr Visible-light photopolymerization of DGEBA promoted by silsesquioxanes functionalized with cycloaliphatic epoxy groups
title_full_unstemmed Visible-light photopolymerization of DGEBA promoted by silsesquioxanes functionalized with cycloaliphatic epoxy groups
title_sort Visible-light photopolymerization of DGEBA promoted by silsesquioxanes functionalized with cycloaliphatic epoxy groups
dc.creator.none.fl_str_mv Dell'erba, Ignacio Esteban
Arenas, Gustavo Francisco
Schroeder, Walter Fabian
author Dell'erba, Ignacio Esteban
author_facet Dell'erba, Ignacio Esteban
Arenas, Gustavo Francisco
Schroeder, Walter Fabian
author_role author
author2 Arenas, Gustavo Francisco
Schroeder, Walter Fabian
author2_role author
author
dc.subject.none.fl_str_mv Epoxy Networks
Photoinitiated Cationic Polymerization
Silsesquioxanes
topic Epoxy Networks
Photoinitiated Cationic Polymerization
Silsesquioxanes
dc.description.none.fl_txt_mv Diglycidyl ether of bisphenol A (DGEBA) is among the most popular and widely used epoxy monomers. This monomer is commonly used in thermal network polymerizations with amines, phenols, isocyanates or mercaptans as curing agents. However, the photoinitiated polymerization of DGEBA is very sluggish and hence finds little use in high-speed photocuring applications. In this contribution, we demonstrated that this monomer can undergo very fast visible-light photopolymerization when combined with a silsesquioxane (SSO) functionalized with reactive epoxycyclohexane groups. The SSO was synthesized via alkoxysilane hydrolysis/condensation chemistry, using DGEBA as a solvent. We found that the photopolymerization of DGEBA is markedly accelerated as the amount of SSO in the mixture is increased. The promoter effect on the reactivity of DGEBA was ascribed to a combination of both thermal and copolymerization effects. Using dynamic mechanical analysis, we demonstrated that the resulting hybrid materials present a single-phase network structure, where the SSO species function as highly multifunctional epoxy reactants.
Fil: Dell'erba, Ignacio Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Arenas, Gustavo Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Departamento de Física; Argentina
Fil: Schroeder, Walter Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
description Diglycidyl ether of bisphenol A (DGEBA) is among the most popular and widely used epoxy monomers. This monomer is commonly used in thermal network polymerizations with amines, phenols, isocyanates or mercaptans as curing agents. However, the photoinitiated polymerization of DGEBA is very sluggish and hence finds little use in high-speed photocuring applications. In this contribution, we demonstrated that this monomer can undergo very fast visible-light photopolymerization when combined with a silsesquioxane (SSO) functionalized with reactive epoxycyclohexane groups. The SSO was synthesized via alkoxysilane hydrolysis/condensation chemistry, using DGEBA as a solvent. We found that the photopolymerization of DGEBA is markedly accelerated as the amount of SSO in the mixture is increased. The promoter effect on the reactivity of DGEBA was ascribed to a combination of both thermal and copolymerization effects. Using dynamic mechanical analysis, we demonstrated that the resulting hybrid materials present a single-phase network structure, where the SSO species function as highly multifunctional epoxy reactants.
publishDate 2016
dc.date.none.fl_str_mv 2016-01
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/11336/39642
Dell'erba, Ignacio Esteban; Arenas, Gustavo Francisco; Schroeder, Walter Fabian; Visible-light photopolymerization of DGEBA promoted by silsesquioxanes functionalized with cycloaliphatic epoxy groups; Elsevier; Polymer; 83; 1-2016; 172-181
0032-3861
CONICET Digital
CONICET
url http://hdl.handle.net/11336/39642
identifier_str_mv Dell'erba, Ignacio Esteban; Arenas, Gustavo Francisco; Schroeder, Walter Fabian; Visible-light photopolymerization of DGEBA promoted by silsesquioxanes functionalized with cycloaliphatic epoxy groups; Elsevier; Polymer; 83; 1-2016; 172-181
0032-3861
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.polymer.2015.12.013
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0032386115304262
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
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 13.13397

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