Photoreaction and photopolymerization studies on phenoxazin dyes/diphenyliodonium chloride salt
- Autores
- Gomez, María Lorena; Previtali, Carlos Mario; Montejano, Hernan Alfredo; Bertolotti, Sonia Graciela
- Año de publicación
- 2007
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- 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.
Fil: Gomez, María Lorena. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Previtali, Carlos Mario. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Montejano, Hernan Alfredo. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Bertolotti, Sonia Graciela. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina - Materia
-
Acrylamide
Dyes
Electron Transfer
Iodonium Salt
Photopolymerization - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/69689
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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 Técnicas2025-09-29T09:56:30Zoai: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:34982025-09-29 09:56:31.09CONICET 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 |
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 |
topic |
Acrylamide Dyes Electron Transfer Iodonium Salt Photopolymerization |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
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. Fil: Gomez, María Lorena. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina Fil: Previtali, Carlos Mario. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina Fil: Montejano, Hernan Alfredo. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina Fil: Bertolotti, Sonia Graciela. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina |
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 |
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 |
_version_ |
1844613697118404608 |
score |
13.070432 |