Photopolymerization of acrylamide Initiated by the three-component system Safranine/Triethanolamine/ Diphenyliodonium chloride: The effect of the aggregation of the salt

Autores
Gómez, María L.; Montejano, Hernán A.; Bohorquez, María Del Valle; Previtali, Carlos Mario
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The effects of diphenyliodonium chloride (DPI) on the polymerization of acrylamide photoinitiated by the dye safranine with triethanolamine as a coinitiator were investigated in aqueous solutions. The salt notably increased the polymerization rate. This accelerating effects increased appreciably at concentrations of DPI at which the light scattering of the solutions became important. The effects of DPI on the photophysical properties of the dye were also investigated. Although the absorption and fluorescence were scarcely affected, the triplet yield increased by 60%. However, the polymerization rate increased by a factor much higher than that of the triplet yield. The results obtained at high concentrations of the salt could be ascribed to the presence of aggregates of the hydrophobic cations. The lower limit established for the formation of the aggregates was a DPI concentration of approximately 1 × 10 -3 M. Possible mechanisms for the action of the salt were examined.
Fil: Gómez, María L.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Montejano, Hernán A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Bohorquez, María Del Valle. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Previtali, Carlos Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Materia
ACRYLAMIDE
DYES/PIGMENTS
ONIUM SALTS
PHOTOPOLYMERIZATION
RADICAL POLYMERIZATION
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:11336/96685
Acceder
id CONICETDig_e235a595ecb2413d5ff13f4fc89ae065
oai_identifier_str oai:ri.conicet.gov.ar:11336/96685
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Photopolymerization of acrylamide Initiated by the three-component system Safranine/Triethanolamine/ Diphenyliodonium chloride: The effect of the aggregation of the saltGómez, María L.Montejano, Hernán A.Bohorquez, María Del VallePrevitali, Carlos MarioACRYLAMIDEDYES/PIGMENTSONIUM SALTSPHOTOPOLYMERIZATIONRADICAL POLYMERIZATIONhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The effects of diphenyliodonium chloride (DPI) on the polymerization of acrylamide photoinitiated by the dye safranine with triethanolamine as a coinitiator were investigated in aqueous solutions. The salt notably increased the polymerization rate. This accelerating effects increased appreciably at concentrations of DPI at which the light scattering of the solutions became important. The effects of DPI on the photophysical properties of the dye were also investigated. Although the absorption and fluorescence were scarcely affected, the triplet yield increased by 60%. However, the polymerization rate increased by a factor much higher than that of the triplet yield. The results obtained at high concentrations of the salt could be ascribed to the presence of aggregates of the hydrophobic cations. The lower limit established for the formation of the aggregates was a DPI concentration of approximately 1 × 10 -3 M. Possible mechanisms for the action of the salt were examined.Fil: Gómez, María L.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Montejano, Hernán A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Bohorquez, María Del Valle. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Previtali, Carlos Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaJohn Wiley & Sons Inc2004-10info: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/11336/96685Gómez, María L.; Montejano, Hernán A.; Bohorquez, María Del Valle; Previtali, Carlos Mario; Photopolymerization of acrylamide Initiated by the three-component system Safranine/Triethanolamine/ Diphenyliodonium chloride: The effect of the aggregation of the salt; John Wiley & Sons Inc; Journal of Polymer Science Part A: Polymer Chemistry; 42; 19; 10-2004; 4916-49200887-624X1099-0518CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/pola.20296info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1002/pola.20296info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:06:18Zoai:ri.conicet.gov.ar:11336/96685instacron: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 10:06:19.033CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Photopolymerization of acrylamide Initiated by the three-component system Safranine/Triethanolamine/ Diphenyliodonium chloride: The effect of the aggregation of the salt
title Photopolymerization of acrylamide Initiated by the three-component system Safranine/Triethanolamine/ Diphenyliodonium chloride: The effect of the aggregation of the salt
spellingShingle Photopolymerization of acrylamide Initiated by the three-component system Safranine/Triethanolamine/ Diphenyliodonium chloride: The effect of the aggregation of the salt
Gómez, María L.
ACRYLAMIDE
DYES/PIGMENTS
ONIUM SALTS
PHOTOPOLYMERIZATION
RADICAL POLYMERIZATION
title_short Photopolymerization of acrylamide Initiated by the three-component system Safranine/Triethanolamine/ Diphenyliodonium chloride: The effect of the aggregation of the salt
title_full Photopolymerization of acrylamide Initiated by the three-component system Safranine/Triethanolamine/ Diphenyliodonium chloride: The effect of the aggregation of the salt
title_fullStr Photopolymerization of acrylamide Initiated by the three-component system Safranine/Triethanolamine/ Diphenyliodonium chloride: The effect of the aggregation of the salt
title_full_unstemmed Photopolymerization of acrylamide Initiated by the three-component system Safranine/Triethanolamine/ Diphenyliodonium chloride: The effect of the aggregation of the salt
title_sort Photopolymerization of acrylamide Initiated by the three-component system Safranine/Triethanolamine/ Diphenyliodonium chloride: The effect of the aggregation of the salt
dc.creator.none.fl_str_mv Gómez, María L.
Montejano, Hernán A.
Bohorquez, María Del Valle
Previtali, Carlos Mario
author Gómez, María L.
author_facet Gómez, María L.
Montejano, Hernán A.
Bohorquez, María Del Valle
Previtali, Carlos Mario
author_role author
author2 Montejano, Hernán A.
Bohorquez, María Del Valle
Previtali, Carlos Mario
author2_role author
author
author
dc.subject.none.fl_str_mv ACRYLAMIDE
DYES/PIGMENTS
ONIUM SALTS
PHOTOPOLYMERIZATION
RADICAL POLYMERIZATION
topic ACRYLAMIDE
DYES/PIGMENTS
ONIUM SALTS
PHOTOPOLYMERIZATION
RADICAL POLYMERIZATION
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 effects of diphenyliodonium chloride (DPI) on the polymerization of acrylamide photoinitiated by the dye safranine with triethanolamine as a coinitiator were investigated in aqueous solutions. The salt notably increased the polymerization rate. This accelerating effects increased appreciably at concentrations of DPI at which the light scattering of the solutions became important. The effects of DPI on the photophysical properties of the dye were also investigated. Although the absorption and fluorescence were scarcely affected, the triplet yield increased by 60%. However, the polymerization rate increased by a factor much higher than that of the triplet yield. The results obtained at high concentrations of the salt could be ascribed to the presence of aggregates of the hydrophobic cations. The lower limit established for the formation of the aggregates was a DPI concentration of approximately 1 × 10 -3 M. Possible mechanisms for the action of the salt were examined.
Fil: Gómez, María L.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Montejano, Hernán A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Bohorquez, María Del Valle. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Previtali, Carlos Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
description The effects of diphenyliodonium chloride (DPI) on the polymerization of acrylamide photoinitiated by the dye safranine with triethanolamine as a coinitiator were investigated in aqueous solutions. The salt notably increased the polymerization rate. This accelerating effects increased appreciably at concentrations of DPI at which the light scattering of the solutions became important. The effects of DPI on the photophysical properties of the dye were also investigated. Although the absorption and fluorescence were scarcely affected, the triplet yield increased by 60%. However, the polymerization rate increased by a factor much higher than that of the triplet yield. The results obtained at high concentrations of the salt could be ascribed to the presence of aggregates of the hydrophobic cations. The lower limit established for the formation of the aggregates was a DPI concentration of approximately 1 × 10 -3 M. Possible mechanisms for the action of the salt were examined.
publishDate 2004
dc.date.none.fl_str_mv 2004-10
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/11336/96685
Gómez, María L.; Montejano, Hernán A.; Bohorquez, María Del Valle; Previtali, Carlos Mario; Photopolymerization of acrylamide Initiated by the three-component system Safranine/Triethanolamine/ Diphenyliodonium chloride: The effect of the aggregation of the salt; John Wiley & Sons Inc; Journal of Polymer Science Part A: Polymer Chemistry; 42; 19; 10-2004; 4916-4920
0887-624X
1099-0518
CONICET Digital
CONICET
url http://hdl.handle.net/11336/96685
identifier_str_mv Gómez, María L.; Montejano, Hernán A.; Bohorquez, María Del Valle; Previtali, Carlos Mario; Photopolymerization of acrylamide Initiated by the three-component system Safranine/Triethanolamine/ Diphenyliodonium chloride: The effect of the aggregation of the salt; John Wiley & Sons Inc; Journal of Polymer Science Part A: Polymer Chemistry; 42; 19; 10-2004; 4916-4920
0887-624X
1099-0518
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/pola.20296
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1002/pola.20296
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 John Wiley & Sons Inc
publisher.none.fl_str_mv John Wiley & Sons Inc
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_ 1842269952874119168
score 13.13397

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