Analysis of a styrene-divinylester copolymerization: Reaction heats, double bond conversions and average sequence lengths

Autores
Auad, Maria Lujan; Aranguren, Mirta Ines; Borrajo Fernandez, Julio
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A simple model, based on the free radical copolymerization theory of Mayo and Lewis, is developed to predict reaction heats, calorimetric and molar conversions and average sequence lengths, during the crosslinking reaction between a monounsaturated monomer (M1) and a multiunsaturated comonomer (M2). The M2-double bonds are assumed to react independently with equal initial reactivities. The input variables of the model are the initial reactivity ratios (r10, r20) and their variation with the global molar conversion, the initial composition of the reactive mixture (f10) and the molar heat of formation of the different bonds formed during the copolymerization (ΔH11, ΔH22, ΔH12). The application of this model allows to calculate the overall molar and calorimetric double bond conversions (P(m) and P(c)), the heat developed during the reaction (ΔH(T)), the conversions corresponding to each type of unsaturations (P(c1), P(c2), P(m1), P(m2)), and the average sequence lengths of the reacted bonds ( and ). Published data of experimental comonomers conversions in the system styrene-divinylester (SDVER) were satisfactorily reproduced by including a functionality of both reactivity ratios with the overall conversion. Finally, it was shown that the assumption implicitly made in most published kinetic studies from the differential scanning calorimetric (DSC) data, that P(c) and P(m) are equivalent, is not general and this feature must be investigated in order to perform correct kinetic calculations.
Fil: Auad, Maria Lujan. Universidad Nacional de Mar del Plata; Argentina
Fil: Aranguren, Mirta 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
Fil: Borrajo Fernandez, Julio. 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
CROSSLINKING COPOLYMERIZATION
DIVINYLESTER RESINS
REACTIVITY RATIOS
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:11336/128495
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/128495
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Analysis of a styrene-divinylester copolymerization: Reaction heats, double bond conversions and average sequence lengthsAuad, Maria LujanAranguren, Mirta InesBorrajo Fernandez, JulioCROSSLINKING COPOLYMERIZATIONDIVINYLESTER RESINSREACTIVITY RATIOShttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1A simple model, based on the free radical copolymerization theory of Mayo and Lewis, is developed to predict reaction heats, calorimetric and molar conversions and average sequence lengths, during the crosslinking reaction between a monounsaturated monomer (M1) and a multiunsaturated comonomer (M2). The M2-double bonds are assumed to react independently with equal initial reactivities. The input variables of the model are the initial reactivity ratios (r10, r20) and their variation with the global molar conversion, the initial composition of the reactive mixture (f10) and the molar heat of formation of the different bonds formed during the copolymerization (ΔH11, ΔH22, ΔH12). The application of this model allows to calculate the overall molar and calorimetric double bond conversions (P(m) and P(c)), the heat developed during the reaction (ΔH(T)), the conversions corresponding to each type of unsaturations (P(c1), P(c2), P(m1), P(m2)), and the average sequence lengths of the reacted bonds ( and ). Published data of experimental comonomers conversions in the system styrene-divinylester (SDVER) were satisfactorily reproduced by including a functionality of both reactivity ratios with the overall conversion. Finally, it was shown that the assumption implicitly made in most published kinetic studies from the differential scanning calorimetric (DSC) data, that P(c) and P(m) are equivalent, is not general and this feature must be investigated in order to perform correct kinetic calculations.Fil: Auad, Maria Lujan. Universidad Nacional de Mar del Plata; ArgentinaFil: Aranguren, Mirta 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; ArgentinaFil: Borrajo Fernandez, Julio. 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; ArgentinaElsevier2000-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/128495Auad, Maria Lujan; Aranguren, Mirta Ines; Borrajo Fernandez, Julio; Analysis of a styrene-divinylester copolymerization: Reaction heats, double bond conversions and average sequence lengths; Elsevier; Polymer; 41; 9; 12-2000; 3317-33290032-3861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0032386199005170info:eu-repo/semantics/altIdentifier/doi/10.1016/S0032-3861(99)00517-0info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:30:51Zoai:ri.conicet.gov.ar:11336/128495instacron: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:34982025-10-15 15:30:51.393CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Analysis of a styrene-divinylester copolymerization: Reaction heats, double bond conversions and average sequence lengths
title Analysis of a styrene-divinylester copolymerization: Reaction heats, double bond conversions and average sequence lengths
spellingShingle Analysis of a styrene-divinylester copolymerization: Reaction heats, double bond conversions and average sequence lengths
Auad, Maria Lujan
CROSSLINKING COPOLYMERIZATION
DIVINYLESTER RESINS
REACTIVITY RATIOS
title_short Analysis of a styrene-divinylester copolymerization: Reaction heats, double bond conversions and average sequence lengths
title_full Analysis of a styrene-divinylester copolymerization: Reaction heats, double bond conversions and average sequence lengths
title_fullStr Analysis of a styrene-divinylester copolymerization: Reaction heats, double bond conversions and average sequence lengths
title_full_unstemmed Analysis of a styrene-divinylester copolymerization: Reaction heats, double bond conversions and average sequence lengths
title_sort Analysis of a styrene-divinylester copolymerization: Reaction heats, double bond conversions and average sequence lengths
dc.creator.none.fl_str_mv Auad, Maria Lujan
Aranguren, Mirta Ines
Borrajo Fernandez, Julio
author Auad, Maria Lujan
author_facet Auad, Maria Lujan
Aranguren, Mirta Ines
Borrajo Fernandez, Julio
author_role author
author2 Aranguren, Mirta Ines
Borrajo Fernandez, Julio
author2_role author
author
dc.subject.none.fl_str_mv CROSSLINKING COPOLYMERIZATION
DIVINYLESTER RESINS
REACTIVITY RATIOS
topic CROSSLINKING COPOLYMERIZATION
DIVINYLESTER RESINS
REACTIVITY RATIOS
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A simple model, based on the free radical copolymerization theory of Mayo and Lewis, is developed to predict reaction heats, calorimetric and molar conversions and average sequence lengths, during the crosslinking reaction between a monounsaturated monomer (M1) and a multiunsaturated comonomer (M2). The M2-double bonds are assumed to react independently with equal initial reactivities. The input variables of the model are the initial reactivity ratios (r10, r20) and their variation with the global molar conversion, the initial composition of the reactive mixture (f10) and the molar heat of formation of the different bonds formed during the copolymerization (ΔH11, ΔH22, ΔH12). The application of this model allows to calculate the overall molar and calorimetric double bond conversions (P(m) and P(c)), the heat developed during the reaction (ΔH(T)), the conversions corresponding to each type of unsaturations (P(c1), P(c2), P(m1), P(m2)), and the average sequence lengths of the reacted bonds ( and ). Published data of experimental comonomers conversions in the system styrene-divinylester (SDVER) were satisfactorily reproduced by including a functionality of both reactivity ratios with the overall conversion. Finally, it was shown that the assumption implicitly made in most published kinetic studies from the differential scanning calorimetric (DSC) data, that P(c) and P(m) are equivalent, is not general and this feature must be investigated in order to perform correct kinetic calculations.
Fil: Auad, Maria Lujan. Universidad Nacional de Mar del Plata; Argentina
Fil: Aranguren, Mirta 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
Fil: Borrajo Fernandez, Julio. 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 A simple model, based on the free radical copolymerization theory of Mayo and Lewis, is developed to predict reaction heats, calorimetric and molar conversions and average sequence lengths, during the crosslinking reaction between a monounsaturated monomer (M1) and a multiunsaturated comonomer (M2). The M2-double bonds are assumed to react independently with equal initial reactivities. The input variables of the model are the initial reactivity ratios (r10, r20) and their variation with the global molar conversion, the initial composition of the reactive mixture (f10) and the molar heat of formation of the different bonds formed during the copolymerization (ΔH11, ΔH22, ΔH12). The application of this model allows to calculate the overall molar and calorimetric double bond conversions (P(m) and P(c)), the heat developed during the reaction (ΔH(T)), the conversions corresponding to each type of unsaturations (P(c1), P(c2), P(m1), P(m2)), and the average sequence lengths of the reacted bonds ( and ). Published data of experimental comonomers conversions in the system styrene-divinylester (SDVER) were satisfactorily reproduced by including a functionality of both reactivity ratios with the overall conversion. Finally, it was shown that the assumption implicitly made in most published kinetic studies from the differential scanning calorimetric (DSC) data, that P(c) and P(m) are equivalent, is not general and this feature must be investigated in order to perform correct kinetic calculations.
publishDate 2000
dc.date.none.fl_str_mv 2000-12
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/11336/128495
Auad, Maria Lujan; Aranguren, Mirta Ines; Borrajo Fernandez, Julio; Analysis of a styrene-divinylester copolymerization: Reaction heats, double bond conversions and average sequence lengths; Elsevier; Polymer; 41; 9; 12-2000; 3317-3329
0032-3861
CONICET Digital
CONICET
url http://hdl.handle.net/11336/128495
identifier_str_mv Auad, Maria Lujan; Aranguren, Mirta Ines; Borrajo Fernandez, Julio; Analysis of a styrene-divinylester copolymerization: Reaction heats, double bond conversions and average sequence lengths; Elsevier; Polymer; 41; 9; 12-2000; 3317-3329
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/abs/pii/S0032386199005170
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0032-3861(99)00517-0
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
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score 13.22299

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