Mechanism and molecular weight model for thermal oxidation of linear ethylene-butene copolymer

Autores
Chiantore, O.; Tripodi, Silvana Beatriz; Sarmoria, Claudia; Vallés, E.
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The mechanism of thermooxidative degradation at 80°C of a narrow distribution linear ethylene-butene copolymer has been described by determining the chemical modifications and molecular weight distribution changes occurring in the polymer chains, and successively fitting the experimental results with a mathematical model which allows scission and crosslinking reactions to occur simultaneously. Degradation takes place with autoacceleration and from the computer simulation a cubic dependence of the degree of crosslinking and degree of scission with exposure time was obtained. It was established that in this system scissions predominate over crosslinking, in accordance with the drop in average molecular weights and the concomitant accumulation of oxidation products.
Fil: Chiantore, O.. Università di Torino; Italia
Fil: Tripodi, Silvana Beatriz. 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: 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: Vallés, E.. 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
Ethylene-Butene Copolymer
Olefin Copolymers
Thermal Oxidation
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:11336/38009
Acceder
id CONICETDig_f531a393c32f5c44a69f1ee177568281
oai_identifier_str oai:ri.conicet.gov.ar:11336/38009
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Mechanism and molecular weight model for thermal oxidation of linear ethylene-butene copolymerChiantore, O.Tripodi, Silvana BeatrizSarmoria, ClaudiaVallés, E.Ethylene-Butene CopolymerOlefin CopolymersThermal Oxidationhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The mechanism of thermooxidative degradation at 80°C of a narrow distribution linear ethylene-butene copolymer has been described by determining the chemical modifications and molecular weight distribution changes occurring in the polymer chains, and successively fitting the experimental results with a mathematical model which allows scission and crosslinking reactions to occur simultaneously. Degradation takes place with autoacceleration and from the computer simulation a cubic dependence of the degree of crosslinking and degree of scission with exposure time was obtained. It was established that in this system scissions predominate over crosslinking, in accordance with the drop in average molecular weights and the concomitant accumulation of oxidation products.Fil: Chiantore, O.. Università di Torino; ItaliaFil: Tripodi, Silvana Beatriz. 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: 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: Vallés, E.. 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; ArgentinaElsevier2001-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/38009Chiantore, O.; Tripodi, Silvana Beatriz; Sarmoria, Claudia; Vallés, E.; Mechanism and molecular weight model for thermal oxidation of linear ethylene-butene copolymer; Elsevier; Polymer; 42; 9; 12-2001; 3981-39870032-3861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0032386100007369info:eu-repo/semantics/altIdentifier/doi/10.1016/S0032-3861(00)00736-9info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:01:41Zoai:ri.conicet.gov.ar:11336/38009instacron: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:34982025-09-10 13:01:42.209CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Mechanism and molecular weight model for thermal oxidation of linear ethylene-butene copolymer
title Mechanism and molecular weight model for thermal oxidation of linear ethylene-butene copolymer
spellingShingle Mechanism and molecular weight model for thermal oxidation of linear ethylene-butene copolymer
Chiantore, O.
Ethylene-Butene Copolymer
Olefin Copolymers
Thermal Oxidation
title_short Mechanism and molecular weight model for thermal oxidation of linear ethylene-butene copolymer
title_full Mechanism and molecular weight model for thermal oxidation of linear ethylene-butene copolymer
title_fullStr Mechanism and molecular weight model for thermal oxidation of linear ethylene-butene copolymer
title_full_unstemmed Mechanism and molecular weight model for thermal oxidation of linear ethylene-butene copolymer
title_sort Mechanism and molecular weight model for thermal oxidation of linear ethylene-butene copolymer
dc.creator.none.fl_str_mv Chiantore, O.
Tripodi, Silvana Beatriz
Sarmoria, Claudia
Vallés, E.
author Chiantore, O.
author_facet Chiantore, O.
Tripodi, Silvana Beatriz
Sarmoria, Claudia
Vallés, E.
author_role author
author2 Tripodi, Silvana Beatriz
Sarmoria, Claudia
Vallés, E.
author2_role author
author
author
dc.subject.none.fl_str_mv Ethylene-Butene Copolymer
Olefin Copolymers
Thermal Oxidation
topic Ethylene-Butene Copolymer
Olefin Copolymers
Thermal Oxidation
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The mechanism of thermooxidative degradation at 80°C of a narrow distribution linear ethylene-butene copolymer has been described by determining the chemical modifications and molecular weight distribution changes occurring in the polymer chains, and successively fitting the experimental results with a mathematical model which allows scission and crosslinking reactions to occur simultaneously. Degradation takes place with autoacceleration and from the computer simulation a cubic dependence of the degree of crosslinking and degree of scission with exposure time was obtained. It was established that in this system scissions predominate over crosslinking, in accordance with the drop in average molecular weights and the concomitant accumulation of oxidation products.
Fil: Chiantore, O.. Università di Torino; Italia
Fil: Tripodi, Silvana Beatriz. 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: 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: Vallés, E.. 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 The mechanism of thermooxidative degradation at 80°C of a narrow distribution linear ethylene-butene copolymer has been described by determining the chemical modifications and molecular weight distribution changes occurring in the polymer chains, and successively fitting the experimental results with a mathematical model which allows scission and crosslinking reactions to occur simultaneously. Degradation takes place with autoacceleration and from the computer simulation a cubic dependence of the degree of crosslinking and degree of scission with exposure time was obtained. It was established that in this system scissions predominate over crosslinking, in accordance with the drop in average molecular weights and the concomitant accumulation of oxidation products.
publishDate 2001
dc.date.none.fl_str_mv 2001-12
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/11336/38009
Chiantore, O.; Tripodi, Silvana Beatriz; Sarmoria, Claudia; Vallés, E.; Mechanism and molecular weight model for thermal oxidation of linear ethylene-butene copolymer; Elsevier; Polymer; 42; 9; 12-2001; 3981-3987
0032-3861
CONICET Digital
CONICET
url http://hdl.handle.net/11336/38009
identifier_str_mv Chiantore, O.; Tripodi, Silvana Beatriz; Sarmoria, Claudia; Vallés, E.; Mechanism and molecular weight model for thermal oxidation of linear ethylene-butene copolymer; Elsevier; Polymer; 42; 9; 12-2001; 3981-3987
0032-3861
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/S0032386100007369
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0032-3861(00)00736-9
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
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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_ 1842979966653825024
score 12.993085

Publicaciones similares