Transparent polysilsesquioxane films obtained from bridged ureasil precursors: Tunable photoluminescence emission in the visible region and filtering of UV-radiation

Autores
Gomez, María Lorena; Fasce, Diana Patricia; Williams, Roberto Juan Jose; Previtali, Carlos Mario; Montejano, Hernan Alfredo
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Bridged ureasil precursors were synthesized by the reaction of either ethylenediamine (1 mol) or m-xylylenediamine (1 mol) with isocyanatepropyltriethoxysilane (2 mol). Transparent polysilsesquioxane films were obtained by the hydrolytic condensation of the pure precursors or their co-condensation in a 50:50 molar ratio. Films based on pure ureasil precursors showed a blue photoluminescent emission band assigned to the photoinduced proton-transfer among H-bonded urea groups and the subsequent radiative recombination of ionized groups. Films synthesized by the co-condensation of both precursors exhibited a significant red-shift of their absorption, excitation, and emission spectra, associated to de-localization of H-bonds, and a high absorption of UV-radiation. Polysilsesquioxane films synthesized by the co-condensation of two different ureasil precursors with similar lengths of organic bridges showed a significant red-shift of their absorption, excitation, and emission spectra when compared to films synthesized from a single ureasil precursor. They also exhibited a high absorption of UV-radiation while keeping transparency in the visible region.
Fil: Gomez, María Lorena. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Fasce, Diana Patricia. 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: Williams, Roberto Juan Jose. 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: Previtali, Carlos Mario. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Montejano, Hernan Alfredo. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Bridged Polysilsesquioxanes
Films
Fluorescence
Ureasils
Uv-Filter
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:11336/76568
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/76568
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Transparent polysilsesquioxane films obtained from bridged ureasil precursors: Tunable photoluminescence emission in the visible region and filtering of UV-radiationGomez, María LorenaFasce, Diana PatriciaWilliams, Roberto Juan JosePrevitali, Carlos MarioMontejano, Hernan AlfredoBridged PolysilsesquioxanesFilmsFluorescenceUreasilsUv-Filterhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Bridged ureasil precursors were synthesized by the reaction of either ethylenediamine (1 mol) or m-xylylenediamine (1 mol) with isocyanatepropyltriethoxysilane (2 mol). Transparent polysilsesquioxane films were obtained by the hydrolytic condensation of the pure precursors or their co-condensation in a 50:50 molar ratio. Films based on pure ureasil precursors showed a blue photoluminescent emission band assigned to the photoinduced proton-transfer among H-bonded urea groups and the subsequent radiative recombination of ionized groups. Films synthesized by the co-condensation of both precursors exhibited a significant red-shift of their absorption, excitation, and emission spectra, associated to de-localization of H-bonds, and a high absorption of UV-radiation. Polysilsesquioxane films synthesized by the co-condensation of two different ureasil precursors with similar lengths of organic bridges showed a significant red-shift of their absorption, excitation, and emission spectra when compared to films synthesized from a single ureasil precursor. They also exhibited a high absorption of UV-radiation while keeping transparency in the visible region.Fil: Gomez, María Lorena. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Fasce, Diana Patricia. 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: Williams, Roberto Juan Jose. 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: Previtali, Carlos Mario. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Montejano, Hernan Alfredo. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaWiley VCH Verlag2010-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/76568Gomez, María Lorena; Fasce, Diana Patricia; Williams, Roberto Juan Jose; Previtali, Carlos Mario; Montejano, Hernan Alfredo; Transparent polysilsesquioxane films obtained from bridged ureasil precursors: Tunable photoluminescence emission in the visible region and filtering of UV-radiation; Wiley VCH Verlag; Macromolecular Materials and Engineering (print); 295; 11; 11-2010; 1042-10481438-7492CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/mame.201000198info:eu-repo/semantics/altIdentifier/doi/10.1002/mame.201000198info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-26T08:39:34Zoai:ri.conicet.gov.ar:11336/76568instacron: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 08:39:34.612CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Transparent polysilsesquioxane films obtained from bridged ureasil precursors: Tunable photoluminescence emission in the visible region and filtering of UV-radiation
title Transparent polysilsesquioxane films obtained from bridged ureasil precursors: Tunable photoluminescence emission in the visible region and filtering of UV-radiation
spellingShingle Transparent polysilsesquioxane films obtained from bridged ureasil precursors: Tunable photoluminescence emission in the visible region and filtering of UV-radiation
Gomez, María Lorena
Bridged Polysilsesquioxanes
Films
Fluorescence
Ureasils
Uv-Filter
title_short Transparent polysilsesquioxane films obtained from bridged ureasil precursors: Tunable photoluminescence emission in the visible region and filtering of UV-radiation
title_full Transparent polysilsesquioxane films obtained from bridged ureasil precursors: Tunable photoluminescence emission in the visible region and filtering of UV-radiation
title_fullStr Transparent polysilsesquioxane films obtained from bridged ureasil precursors: Tunable photoluminescence emission in the visible region and filtering of UV-radiation
title_full_unstemmed Transparent polysilsesquioxane films obtained from bridged ureasil precursors: Tunable photoluminescence emission in the visible region and filtering of UV-radiation
title_sort Transparent polysilsesquioxane films obtained from bridged ureasil precursors: Tunable photoluminescence emission in the visible region and filtering of UV-radiation
dc.creator.none.fl_str_mv Gomez, María Lorena
Fasce, Diana Patricia
Williams, Roberto Juan Jose
Previtali, Carlos Mario
Montejano, Hernan Alfredo
author Gomez, María Lorena
author_facet Gomez, María Lorena
Fasce, Diana Patricia
Williams, Roberto Juan Jose
Previtali, Carlos Mario
Montejano, Hernan Alfredo
author_role author
author2 Fasce, Diana Patricia
Williams, Roberto Juan Jose
Previtali, Carlos Mario
Montejano, Hernan Alfredo
author2_role author
author
author
author
dc.subject.none.fl_str_mv Bridged Polysilsesquioxanes
Films
Fluorescence
Ureasils
Uv-Filter
topic Bridged Polysilsesquioxanes
Films
Fluorescence
Ureasils
Uv-Filter
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Bridged ureasil precursors were synthesized by the reaction of either ethylenediamine (1 mol) or m-xylylenediamine (1 mol) with isocyanatepropyltriethoxysilane (2 mol). Transparent polysilsesquioxane films were obtained by the hydrolytic condensation of the pure precursors or their co-condensation in a 50:50 molar ratio. Films based on pure ureasil precursors showed a blue photoluminescent emission band assigned to the photoinduced proton-transfer among H-bonded urea groups and the subsequent radiative recombination of ionized groups. Films synthesized by the co-condensation of both precursors exhibited a significant red-shift of their absorption, excitation, and emission spectra, associated to de-localization of H-bonds, and a high absorption of UV-radiation. Polysilsesquioxane films synthesized by the co-condensation of two different ureasil precursors with similar lengths of organic bridges showed a significant red-shift of their absorption, excitation, and emission spectra when compared to films synthesized from a single ureasil precursor. They also exhibited a high absorption of UV-radiation while keeping transparency in the visible region.
Fil: Gomez, María Lorena. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Fasce, Diana Patricia. 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: Williams, Roberto Juan Jose. 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: Previtali, Carlos Mario. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Montejano, Hernan Alfredo. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Bridged ureasil precursors were synthesized by the reaction of either ethylenediamine (1 mol) or m-xylylenediamine (1 mol) with isocyanatepropyltriethoxysilane (2 mol). Transparent polysilsesquioxane films were obtained by the hydrolytic condensation of the pure precursors or their co-condensation in a 50:50 molar ratio. Films based on pure ureasil precursors showed a blue photoluminescent emission band assigned to the photoinduced proton-transfer among H-bonded urea groups and the subsequent radiative recombination of ionized groups. Films synthesized by the co-condensation of both precursors exhibited a significant red-shift of their absorption, excitation, and emission spectra, associated to de-localization of H-bonds, and a high absorption of UV-radiation. Polysilsesquioxane films synthesized by the co-condensation of two different ureasil precursors with similar lengths of organic bridges showed a significant red-shift of their absorption, excitation, and emission spectra when compared to films synthesized from a single ureasil precursor. They also exhibited a high absorption of UV-radiation while keeping transparency in the visible region.
publishDate 2010
dc.date.none.fl_str_mv 2010-11
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/11336/76568
Gomez, María Lorena; Fasce, Diana Patricia; Williams, Roberto Juan Jose; Previtali, Carlos Mario; Montejano, Hernan Alfredo; Transparent polysilsesquioxane films obtained from bridged ureasil precursors: Tunable photoluminescence emission in the visible region and filtering of UV-radiation; Wiley VCH Verlag; Macromolecular Materials and Engineering (print); 295; 11; 11-2010; 1042-1048
1438-7492
CONICET Digital
CONICET
url http://hdl.handle.net/11336/76568
identifier_str_mv Gomez, María Lorena; Fasce, Diana Patricia; Williams, Roberto Juan Jose; Previtali, Carlos Mario; Montejano, Hernan Alfredo; Transparent polysilsesquioxane films obtained from bridged ureasil precursors: Tunable photoluminescence emission in the visible region and filtering of UV-radiation; Wiley VCH Verlag; Macromolecular Materials and Engineering (print); 295; 11; 11-2010; 1042-1048
1438-7492
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/mame.201000198
info:eu-repo/semantics/altIdentifier/doi/10.1002/mame.201000198
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
application/pdf
dc.publisher.none.fl_str_mv Wiley VCH Verlag
publisher.none.fl_str_mv Wiley VCH Verlag
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 13.011256

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