Photoreaction and photopolymerization studies on phenoxazin dyes/diphenyliodonium chloride salt

The photophysics and photochemistry of the dyes resazurin (Rz) and resorufin (Rf) in absence and presence of diphenyliodonium chloride (DPIC) were investigated in water at pH 10. The dye/DPIC combination undergoes photoreaction via intermolecular electron transfer, resulting in photobleaching of the...

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Autores: Gomez, María Lorena, Previtali, Carlos Mario, Montejano, Hernan Alfredo, Bertolotti, Sonia Graciela
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2007
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/69689
Acesso em linha:http://hdl.handle.net/11336/69689
Access Level:acceso abierto
Palavra-chave:Acrylamide
Dyes
Electron Transfer
Iodonium Salt
Photopolymerization
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
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repository_id_str
spelling Photoreaction and photopolymerization studies on phenoxazin dyes/diphenyliodonium chloride saltGomez, María LorenaPrevitali, Carlos MarioMontejano, Hernan AlfredoBertolotti, Sonia GracielaAcrylamideDyesElectron TransferIodonium SaltPhotopolymerizationhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The photophysics and photochemistry of the dyes resazurin (Rz) and resorufin (Rf) in absence and presence of diphenyliodonium chloride (DPIC) were investigated in water at pH 10. The dye/DPIC combination undergoes photoreaction via intermolecular electron transfer, resulting in photobleaching of the dye and generation of active radical species released by subsequent decomposition of DPIC. The polymerization of acrylamide in aqueous solution on visible irradiation in the presence of resazurin without the onium salt was negligible. However, it proceeds efficiently in the presence of DPIC. The polymerization follows a typical radical chain mechanism with second order termination. In the case of Rf/DPIC the photobleaching is very important, and no appreciable polymerization occurs. © 2006 Elsevier B.V. All rights reserved.Fil: Gomez, María Lorena. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Previtali, Carlos Mario. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Montejano, Hernan Alfredo. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Bertolotti, Sonia Graciela. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaElsevier Science Sa2007-04info: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/11336/69689Gomez, María Lorena; Previtali, Carlos Mario; Montejano, Hernan Alfredo; Bertolotti, Sonia Graciela; Photoreaction and photopolymerization studies on phenoxazin dyes/diphenyliodonium chloride salt; Elsevier Science Sa; Journal of Photochemistry and Photobiology A: Chemistry; 188; 1; 4-2007; 83-891010-6030CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1010603006006216info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jphotochem.2006.11.023info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:51:05Zoai:ri.conicet.gov.ar:11336/69689instacron: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:34982024-05-08 13:51:06.051CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Photoreaction and photopolymerization studies on phenoxazin dyes/diphenyliodonium chloride salt
title Photoreaction and photopolymerization studies on phenoxazin dyes/diphenyliodonium chloride salt
spellingShingle Photoreaction and photopolymerization studies on phenoxazin dyes/diphenyliodonium chloride salt
Gomez, María Lorena
Acrylamide
Dyes
Electron Transfer
Iodonium Salt
Photopolymerization
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
title_short Photoreaction and photopolymerization studies on phenoxazin dyes/diphenyliodonium chloride salt
title_full Photoreaction and photopolymerization studies on phenoxazin dyes/diphenyliodonium chloride salt
title_fullStr Photoreaction and photopolymerization studies on phenoxazin dyes/diphenyliodonium chloride salt
title_full_unstemmed Photoreaction and photopolymerization studies on phenoxazin dyes/diphenyliodonium chloride salt
title_sort Photoreaction and photopolymerization studies on phenoxazin dyes/diphenyliodonium chloride salt
dc.creator.none.fl_str_mv Gomez, María Lorena
Previtali, Carlos Mario
Montejano, Hernan Alfredo
Bertolotti, Sonia Graciela
author Gomez, María Lorena
author_facet Gomez, María Lorena
Previtali, Carlos Mario
Montejano, Hernan Alfredo
Bertolotti, Sonia Graciela
author_role author
author2 Previtali, Carlos Mario
Montejano, Hernan Alfredo
Bertolotti, Sonia Graciela
author2_role author
author
author
dc.subject.none.fl_str_mv Acrylamide
Dyes
Electron Transfer
Iodonium Salt
Photopolymerization
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
topic Acrylamide
Dyes
Electron Transfer
Iodonium Salt
Photopolymerization
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
description The photophysics and photochemistry of the dyes resazurin (Rz) and resorufin (Rf) in absence and presence of diphenyliodonium chloride (DPIC) were investigated in water at pH 10. The dye/DPIC combination undergoes photoreaction via intermolecular electron transfer, resulting in photobleaching of the dye and generation of active radical species released by subsequent decomposition of DPIC. The polymerization of acrylamide in aqueous solution on visible irradiation in the presence of resazurin without the onium salt was negligible. However, it proceeds efficiently in the presence of DPIC. The polymerization follows a typical radical chain mechanism with second order termination. In the case of Rf/DPIC the photobleaching is very important, and no appreciable polymerization occurs. © 2006 Elsevier B.V. All rights reserved.
publishDate 2007
dc.date.none.fl_str_mv 2007-04
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/11336/69689
Gomez, María Lorena; Previtali, Carlos Mario; Montejano, Hernan Alfredo; Bertolotti, Sonia Graciela; Photoreaction and photopolymerization studies on phenoxazin dyes/diphenyliodonium chloride salt; Elsevier Science Sa; Journal of Photochemistry and Photobiology A: Chemistry; 188; 1; 4-2007; 83-89
1010-6030
CONICET Digital
CONICET
url http://hdl.handle.net/11336/69689
identifier_str_mv Gomez, María Lorena; Previtali, Carlos Mario; Montejano, Hernan Alfredo; Bertolotti, Sonia Graciela; Photoreaction and photopolymerization studies on phenoxazin dyes/diphenyliodonium chloride salt; Elsevier Science Sa; Journal of Photochemistry and Photobiology A: Chemistry; 188; 1; 4-2007; 83-89
1010-6030
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://www.sciencedirect.com/science/article/pii/S1010603006006216
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jphotochem.2006.11.023
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 Elsevier Science Sa
publisher.none.fl_str_mv Elsevier Science Sa
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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 15.812429

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