Impact of radiation attenuation and temperature evolution on monomer conversion of dimethacrylatebased resins with a photobleaching photoinitiator

Autores
Mucci, Veronica Lujan; Cook, Wayne D.; Vallo, Claudia Ines
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The photopolymerization process of a dimethacrylate copolymer system activated by the camphorquinone (CQ)/amine photoinitiator system (1 wt%), was experimentally studied under nonisothermal conditions in 1- and 2-mm thick samples by measuring double bond conversion, temperature rise and radiation attenuation through the sample during polymerization. The peak temperature in 1- or 2-mm thick samples irradiated at 5 mW/cm2 was 29 and 388C, respectively. The temperature evolution during polymerization was also predicted by solving the energy balance coupled with the kinetic expressions for the reaction rate. Radiation attenuation as a function of depth by the photobleachable CQ results in spatial and temporal variation in the local rates of the kinetic steps involved. General relationships for spatiotemporal variations in concentration of a photobleaching initiator, in systems where attenuation and initiator consumption are taken into account, were used to compute local polymerization rates. The effects of radiation attenuation, photobleaching of the photoinitiator and variation of cure temperature at different depths into the resin, all compete to determine the double bond consumption. The increased radiation attenuation in the 2-mm thick sample was accompanied by a higher cure temperature compared with the 1-mm thick sample, and as a result, the monomer conversion averaged over the sample thickness in the 1- and 2-mm thick samples was the same. Results obtained in this research highlight the inherent interlinking of thermal and radiation attenuation effects in bulk photopolymerizing systems. POLYM. ENG. SCI., 49:2225-2233, 2009. © 2009 Society of Plastics Engineers.
Fil: Mucci, Veronica Lujan. 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: Cook, Wayne D.. Monash University; Australia
Fil: Vallo, Claudia Ines. 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
Photopolymerization
Modeling
Dimethacrylates
Camphorquinone
Photobleaching
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:11336/66025
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/66025
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Impact of radiation attenuation and temperature evolution on monomer conversion of dimethacrylatebased resins with a photobleaching photoinitiatorMucci, Veronica LujanCook, Wayne D.Vallo, Claudia InesPhotopolymerizationModelingDimethacrylatesCamphorquinonePhotobleachinghttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1https://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The photopolymerization process of a dimethacrylate copolymer system activated by the camphorquinone (CQ)/amine photoinitiator system (1 wt%), was experimentally studied under nonisothermal conditions in 1- and 2-mm thick samples by measuring double bond conversion, temperature rise and radiation attenuation through the sample during polymerization. The peak temperature in 1- or 2-mm thick samples irradiated at 5 mW/cm2 was 29 and 388C, respectively. The temperature evolution during polymerization was also predicted by solving the energy balance coupled with the kinetic expressions for the reaction rate. Radiation attenuation as a function of depth by the photobleachable CQ results in spatial and temporal variation in the local rates of the kinetic steps involved. General relationships for spatiotemporal variations in concentration of a photobleaching initiator, in systems where attenuation and initiator consumption are taken into account, were used to compute local polymerization rates. The effects of radiation attenuation, photobleaching of the photoinitiator and variation of cure temperature at different depths into the resin, all compete to determine the double bond consumption. The increased radiation attenuation in the 2-mm thick sample was accompanied by a higher cure temperature compared with the 1-mm thick sample, and as a result, the monomer conversion averaged over the sample thickness in the 1- and 2-mm thick samples was the same. Results obtained in this research highlight the inherent interlinking of thermal and radiation attenuation effects in bulk photopolymerizing systems. POLYM. ENG. SCI., 49:2225-2233, 2009. © 2009 Society of Plastics Engineers.Fil: Mucci, Veronica Lujan. 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: Cook, Wayne D.. Monash University; AustraliaFil: Vallo, Claudia Ines. 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; ArgentinaJohn Wiley & Sons Inc2009-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/66025Mucci, Veronica Lujan; Cook, Wayne D.; Vallo, Claudia Ines; Impact of radiation attenuation and temperature evolution on monomer conversion of dimethacrylatebased resins with a photobleaching photoinitiator; John Wiley & Sons Inc; Polymer Engineering and Science; 49; 11; 11-2009; 2225-22330032-3888CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/pen.21460info:eu-repo/semantics/altIdentifier/doi/10.1002/pen.21460info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:54:10Zoai:ri.conicet.gov.ar:11336/66025instacron: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 09:54:10.717CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Impact of radiation attenuation and temperature evolution on monomer conversion of dimethacrylatebased resins with a photobleaching photoinitiator
title Impact of radiation attenuation and temperature evolution on monomer conversion of dimethacrylatebased resins with a photobleaching photoinitiator
spellingShingle Impact of radiation attenuation and temperature evolution on monomer conversion of dimethacrylatebased resins with a photobleaching photoinitiator
Mucci, Veronica Lujan
Photopolymerization
Modeling
Dimethacrylates
Camphorquinone
Photobleaching
title_short Impact of radiation attenuation and temperature evolution on monomer conversion of dimethacrylatebased resins with a photobleaching photoinitiator
title_full Impact of radiation attenuation and temperature evolution on monomer conversion of dimethacrylatebased resins with a photobleaching photoinitiator
title_fullStr Impact of radiation attenuation and temperature evolution on monomer conversion of dimethacrylatebased resins with a photobleaching photoinitiator
title_full_unstemmed Impact of radiation attenuation and temperature evolution on monomer conversion of dimethacrylatebased resins with a photobleaching photoinitiator
title_sort Impact of radiation attenuation and temperature evolution on monomer conversion of dimethacrylatebased resins with a photobleaching photoinitiator
dc.creator.none.fl_str_mv Mucci, Veronica Lujan
Cook, Wayne D.
Vallo, Claudia Ines
author Mucci, Veronica Lujan
author_facet Mucci, Veronica Lujan
Cook, Wayne D.
Vallo, Claudia Ines
author_role author
author2 Cook, Wayne D.
Vallo, Claudia Ines
author2_role author
author
dc.subject.none.fl_str_mv Photopolymerization
Modeling
Dimethacrylates
Camphorquinone
Photobleaching
topic Photopolymerization
Modeling
Dimethacrylates
Camphorquinone
Photobleaching
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The photopolymerization process of a dimethacrylate copolymer system activated by the camphorquinone (CQ)/amine photoinitiator system (1 wt%), was experimentally studied under nonisothermal conditions in 1- and 2-mm thick samples by measuring double bond conversion, temperature rise and radiation attenuation through the sample during polymerization. The peak temperature in 1- or 2-mm thick samples irradiated at 5 mW/cm2 was 29 and 388C, respectively. The temperature evolution during polymerization was also predicted by solving the energy balance coupled with the kinetic expressions for the reaction rate. Radiation attenuation as a function of depth by the photobleachable CQ results in spatial and temporal variation in the local rates of the kinetic steps involved. General relationships for spatiotemporal variations in concentration of a photobleaching initiator, in systems where attenuation and initiator consumption are taken into account, were used to compute local polymerization rates. The effects of radiation attenuation, photobleaching of the photoinitiator and variation of cure temperature at different depths into the resin, all compete to determine the double bond consumption. The increased radiation attenuation in the 2-mm thick sample was accompanied by a higher cure temperature compared with the 1-mm thick sample, and as a result, the monomer conversion averaged over the sample thickness in the 1- and 2-mm thick samples was the same. Results obtained in this research highlight the inherent interlinking of thermal and radiation attenuation effects in bulk photopolymerizing systems. POLYM. ENG. SCI., 49:2225-2233, 2009. © 2009 Society of Plastics Engineers.
Fil: Mucci, Veronica Lujan. 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: Cook, Wayne D.. Monash University; Australia
Fil: Vallo, Claudia Ines. 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 The photopolymerization process of a dimethacrylate copolymer system activated by the camphorquinone (CQ)/amine photoinitiator system (1 wt%), was experimentally studied under nonisothermal conditions in 1- and 2-mm thick samples by measuring double bond conversion, temperature rise and radiation attenuation through the sample during polymerization. The peak temperature in 1- or 2-mm thick samples irradiated at 5 mW/cm2 was 29 and 388C, respectively. The temperature evolution during polymerization was also predicted by solving the energy balance coupled with the kinetic expressions for the reaction rate. Radiation attenuation as a function of depth by the photobleachable CQ results in spatial and temporal variation in the local rates of the kinetic steps involved. General relationships for spatiotemporal variations in concentration of a photobleaching initiator, in systems where attenuation and initiator consumption are taken into account, were used to compute local polymerization rates. The effects of radiation attenuation, photobleaching of the photoinitiator and variation of cure temperature at different depths into the resin, all compete to determine the double bond consumption. The increased radiation attenuation in the 2-mm thick sample was accompanied by a higher cure temperature compared with the 1-mm thick sample, and as a result, the monomer conversion averaged over the sample thickness in the 1- and 2-mm thick samples was the same. Results obtained in this research highlight the inherent interlinking of thermal and radiation attenuation effects in bulk photopolymerizing systems. POLYM. ENG. SCI., 49:2225-2233, 2009. © 2009 Society of Plastics Engineers.
publishDate 2009
dc.date.none.fl_str_mv 2009-11
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/11336/66025
Mucci, Veronica Lujan; Cook, Wayne D.; Vallo, Claudia Ines; Impact of radiation attenuation and temperature evolution on monomer conversion of dimethacrylatebased resins with a photobleaching photoinitiator; John Wiley & Sons Inc; Polymer Engineering and Science; 49; 11; 11-2009; 2225-2233
0032-3888
CONICET Digital
CONICET
url http://hdl.handle.net/11336/66025
identifier_str_mv Mucci, Veronica Lujan; Cook, Wayne D.; Vallo, Claudia Ines; Impact of radiation attenuation and temperature evolution on monomer conversion of dimethacrylatebased resins with a photobleaching photoinitiator; John Wiley & Sons Inc; Polymer Engineering and Science; 49; 11; 11-2009; 2225-2233
0032-3888
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/pen.21460
info:eu-repo/semantics/altIdentifier/doi/10.1002/pen.21460
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
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
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score 13.13397

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