Modelling molecular weight changes induced in polydimethylsiloxane by gamma and electron beam irradiation

Autores
Satti, Angel Jose; Andreucetti, Noemi Amalia; Ressia, Jorge; Vallat, Marie F.; Sarmoria, Claudia; Valles, Enrique Marcelo
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A commercial linear polydimethylsiloxane (PDMS) was subject to gamma irradiation under vacuum and in air, as well as to accelerated electron beam radiolysis (EB). All irradiation treatments were done at room temperature. The molecular weight changes induced by the radiation processes have been investigated using size exclusion chromatography (SEC) with refraction index (RI) and multi angle laser light scattering (MALLS) detectors to obtain the number and weight average molecular weights of the irradiated samples. The analysis of the data indicates that crosslinking reactions predominated over scission reactions in all cases. Gamma irradiation under vacuum was the most efficient process within the analyzed dose range, reaching the gel point earlier. Irradiation in the presence of oxygen induces oxidative effects, both in gamma and EB irradiations. A previously developed mathematical model of the irradiation process that accounts for simultaneous scission and crosslinking and allows for both H and Y crosslinks fitted well the measured molecular weight data.
Fil: Satti, Angel Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Andreucetti, Noemi Amalia. Universidad Nacional del Sur. Departamento de Química. Laboratorio de Radioisotopos; Argentina
Fil: Ressia, Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Vallat, Marie F.. Centre National de la Recherche Scientifique; Francia
Fil: Sarmoria, Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Valles, Enrique Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Materia
Crosslinking
Experimental
Electron Beam
Gamma Irradiation
Mathematical Model
Pdms
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:11336/41975
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/41975
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Modelling molecular weight changes induced in polydimethylsiloxane by gamma and electron beam irradiationSatti, Angel JoseAndreucetti, Noemi AmaliaRessia, JorgeVallat, Marie F.Sarmoria, ClaudiaValles, Enrique MarceloCrosslinkingExperimentalElectron BeamGamma IrradiationMathematical ModelPdmshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1A commercial linear polydimethylsiloxane (PDMS) was subject to gamma irradiation under vacuum and in air, as well as to accelerated electron beam radiolysis (EB). All irradiation treatments were done at room temperature. The molecular weight changes induced by the radiation processes have been investigated using size exclusion chromatography (SEC) with refraction index (RI) and multi angle laser light scattering (MALLS) detectors to obtain the number and weight average molecular weights of the irradiated samples. The analysis of the data indicates that crosslinking reactions predominated over scission reactions in all cases. Gamma irradiation under vacuum was the most efficient process within the analyzed dose range, reaching the gel point earlier. Irradiation in the presence of oxygen induces oxidative effects, both in gamma and EB irradiations. A previously developed mathematical model of the irradiation process that accounts for simultaneous scission and crosslinking and allows for both H and Y crosslinks fitted well the measured molecular weight data.Fil: Satti, Angel Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaFil: Andreucetti, Noemi Amalia. Universidad Nacional del Sur. Departamento de Química. Laboratorio de Radioisotopos; ArgentinaFil: Ressia, Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaFil: Vallat, Marie F.. Centre National de la Recherche Scientifique; FranciaFil: Sarmoria, Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaFil: Valles, Enrique Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaPergamon-Elsevier Science Ltd2008-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/41975Satti, Angel Jose; Andreucetti, Noemi Amalia; Ressia, Jorge; Vallat, Marie F.; Sarmoria, Claudia; et al.; Modelling molecular weight changes induced in polydimethylsiloxane by gamma and electron beam irradiation; Pergamon-Elsevier Science Ltd; European Polymer Journal; 44; 5; 5-2008; 1548-15550014-3057CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.eurpolymj.2008.02.017info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0014305708000827info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:42Zoai:ri.conicet.gov.ar:11336/41975instacron: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 09:47:43.106CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Modelling molecular weight changes induced in polydimethylsiloxane by gamma and electron beam irradiation
title Modelling molecular weight changes induced in polydimethylsiloxane by gamma and electron beam irradiation
spellingShingle Modelling molecular weight changes induced in polydimethylsiloxane by gamma and electron beam irradiation
Satti, Angel Jose
Crosslinking
Experimental
Electron Beam
Gamma Irradiation
Mathematical Model
Pdms
title_short Modelling molecular weight changes induced in polydimethylsiloxane by gamma and electron beam irradiation
title_full Modelling molecular weight changes induced in polydimethylsiloxane by gamma and electron beam irradiation
title_fullStr Modelling molecular weight changes induced in polydimethylsiloxane by gamma and electron beam irradiation
title_full_unstemmed Modelling molecular weight changes induced in polydimethylsiloxane by gamma and electron beam irradiation
title_sort Modelling molecular weight changes induced in polydimethylsiloxane by gamma and electron beam irradiation
dc.creator.none.fl_str_mv Satti, Angel Jose
Andreucetti, Noemi Amalia
Ressia, Jorge
Vallat, Marie F.
Sarmoria, Claudia
Valles, Enrique Marcelo
author Satti, Angel Jose
author_facet Satti, Angel Jose
Andreucetti, Noemi Amalia
Ressia, Jorge
Vallat, Marie F.
Sarmoria, Claudia
Valles, Enrique Marcelo
author_role author
author2 Andreucetti, Noemi Amalia
Ressia, Jorge
Vallat, Marie F.
Sarmoria, Claudia
Valles, Enrique Marcelo
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Crosslinking
Experimental
Electron Beam
Gamma Irradiation
Mathematical Model
Pdms
topic Crosslinking
Experimental
Electron Beam
Gamma Irradiation
Mathematical Model
Pdms
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A commercial linear polydimethylsiloxane (PDMS) was subject to gamma irradiation under vacuum and in air, as well as to accelerated electron beam radiolysis (EB). All irradiation treatments were done at room temperature. The molecular weight changes induced by the radiation processes have been investigated using size exclusion chromatography (SEC) with refraction index (RI) and multi angle laser light scattering (MALLS) detectors to obtain the number and weight average molecular weights of the irradiated samples. The analysis of the data indicates that crosslinking reactions predominated over scission reactions in all cases. Gamma irradiation under vacuum was the most efficient process within the analyzed dose range, reaching the gel point earlier. Irradiation in the presence of oxygen induces oxidative effects, both in gamma and EB irradiations. A previously developed mathematical model of the irradiation process that accounts for simultaneous scission and crosslinking and allows for both H and Y crosslinks fitted well the measured molecular weight data.
Fil: Satti, Angel Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Andreucetti, Noemi Amalia. Universidad Nacional del Sur. Departamento de Química. Laboratorio de Radioisotopos; Argentina
Fil: Ressia, Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Vallat, Marie F.. Centre National de la Recherche Scientifique; Francia
Fil: Sarmoria, Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Valles, Enrique Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
description A commercial linear polydimethylsiloxane (PDMS) was subject to gamma irradiation under vacuum and in air, as well as to accelerated electron beam radiolysis (EB). All irradiation treatments were done at room temperature. The molecular weight changes induced by the radiation processes have been investigated using size exclusion chromatography (SEC) with refraction index (RI) and multi angle laser light scattering (MALLS) detectors to obtain the number and weight average molecular weights of the irradiated samples. The analysis of the data indicates that crosslinking reactions predominated over scission reactions in all cases. Gamma irradiation under vacuum was the most efficient process within the analyzed dose range, reaching the gel point earlier. Irradiation in the presence of oxygen induces oxidative effects, both in gamma and EB irradiations. A previously developed mathematical model of the irradiation process that accounts for simultaneous scission and crosslinking and allows for both H and Y crosslinks fitted well the measured molecular weight data.
publishDate 2008
dc.date.none.fl_str_mv 2008-05
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/11336/41975
Satti, Angel Jose; Andreucetti, Noemi Amalia; Ressia, Jorge; Vallat, Marie F.; Sarmoria, Claudia; et al.; Modelling molecular weight changes induced in polydimethylsiloxane by gamma and electron beam irradiation; Pergamon-Elsevier Science Ltd; European Polymer Journal; 44; 5; 5-2008; 1548-1555
0014-3057
CONICET Digital
CONICET
url http://hdl.handle.net/11336/41975
identifier_str_mv Satti, Angel Jose; Andreucetti, Noemi Amalia; Ressia, Jorge; Vallat, Marie F.; Sarmoria, Claudia; et al.; Modelling molecular weight changes induced in polydimethylsiloxane by gamma and electron beam irradiation; Pergamon-Elsevier Science Ltd; European Polymer Journal; 44; 5; 5-2008; 1548-1555
0014-3057
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.eurpolymj.2008.02.017
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0014305708000827
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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_ 1844613486158544896
score 13.070432

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