Effect of styrene addition on polystyrene molecular degradation by Lewis acids

Autores
Diaz, Monica Fatima; Barbosa, Silvia Elena; Capiati, Numa Jose
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The polystyrene molecule can suffer chain scission by beta-cleavage mechanism in the presence of Lewis acids. This is an undesirable secondary reaction, particularly when the Friedel-Crafts alkylation is applied to immiscible polyolefin/polystyrene (PS) blends compatibilization. It competes with the main copolymerization reaction, degrading the PS and impairing the properties of the blend. A simple experimental procedure of styrene (St) addition is proposed to compensate the PS degradation. The effect of St on the chain scission is studied by the PS molecular weight variation and reaction gases evolution. Some hypotheses are worked out to get a basic description of this complex cationic reactive process. © 2009 Wiley Periodicals, Inc.
Fil: Diaz, Monica Fatima. 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: Barbosa, Silvia Elena. 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: Capiati, Numa 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
Materia
Cationic Mechanism
Chain Scission
Lewis Acid
Polystyrene Degradation
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:11336/62612
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Effect of styrene addition on polystyrene molecular degradation by Lewis acidsDiaz, Monica FatimaBarbosa, Silvia ElenaCapiati, Numa JoseCationic MechanismChain ScissionLewis AcidPolystyrene Degradationhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The polystyrene molecule can suffer chain scission by beta-cleavage mechanism in the presence of Lewis acids. This is an undesirable secondary reaction, particularly when the Friedel-Crafts alkylation is applied to immiscible polyolefin/polystyrene (PS) blends compatibilization. It competes with the main copolymerization reaction, degrading the PS and impairing the properties of the blend. A simple experimental procedure of styrene (St) addition is proposed to compensate the PS degradation. The effect of St on the chain scission is studied by the PS molecular weight variation and reaction gases evolution. Some hypotheses are worked out to get a basic description of this complex cationic reactive process. © 2009 Wiley Periodicals, Inc.Fil: Diaz, Monica Fatima. 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: Barbosa, Silvia Elena. 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: Capiati, Numa 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; ArgentinaJohn Wiley & Sons Inc2009-12info: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/11336/62612Diaz, Monica Fatima; Barbosa, Silvia Elena; Capiati, Numa Jose; Effect of styrene addition on polystyrene molecular degradation by Lewis acids; John Wiley & Sons Inc; Journal of Applied Polymer Science; 114; 5; 12-2009; 3081-30860021-8995CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/app.30797info:eu-repo/semantics/altIdentifier/doi/10.1002/app.30797info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:41:38Zoai:ri.conicet.gov.ar:11336/62612instacron: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 09:41:39.221CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of styrene addition on polystyrene molecular degradation by Lewis acids
title Effect of styrene addition on polystyrene molecular degradation by Lewis acids
spellingShingle Effect of styrene addition on polystyrene molecular degradation by Lewis acids
Diaz, Monica Fatima
Cationic Mechanism
Chain Scission
Lewis Acid
Polystyrene Degradation
title_short Effect of styrene addition on polystyrene molecular degradation by Lewis acids
title_full Effect of styrene addition on polystyrene molecular degradation by Lewis acids
title_fullStr Effect of styrene addition on polystyrene molecular degradation by Lewis acids
title_full_unstemmed Effect of styrene addition on polystyrene molecular degradation by Lewis acids
title_sort Effect of styrene addition on polystyrene molecular degradation by Lewis acids
dc.creator.none.fl_str_mv Diaz, Monica Fatima
Barbosa, Silvia Elena
Capiati, Numa Jose
author Diaz, Monica Fatima
author_facet Diaz, Monica Fatima
Barbosa, Silvia Elena
Capiati, Numa Jose
author_role author
author2 Barbosa, Silvia Elena
Capiati, Numa Jose
author2_role author
author
dc.subject.none.fl_str_mv Cationic Mechanism
Chain Scission
Lewis Acid
Polystyrene Degradation
topic Cationic Mechanism
Chain Scission
Lewis Acid
Polystyrene Degradation
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The polystyrene molecule can suffer chain scission by beta-cleavage mechanism in the presence of Lewis acids. This is an undesirable secondary reaction, particularly when the Friedel-Crafts alkylation is applied to immiscible polyolefin/polystyrene (PS) blends compatibilization. It competes with the main copolymerization reaction, degrading the PS and impairing the properties of the blend. A simple experimental procedure of styrene (St) addition is proposed to compensate the PS degradation. The effect of St on the chain scission is studied by the PS molecular weight variation and reaction gases evolution. Some hypotheses are worked out to get a basic description of this complex cationic reactive process. © 2009 Wiley Periodicals, Inc.
Fil: Diaz, Monica Fatima. 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: Barbosa, Silvia Elena. 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: Capiati, Numa 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
description The polystyrene molecule can suffer chain scission by beta-cleavage mechanism in the presence of Lewis acids. This is an undesirable secondary reaction, particularly when the Friedel-Crafts alkylation is applied to immiscible polyolefin/polystyrene (PS) blends compatibilization. It competes with the main copolymerization reaction, degrading the PS and impairing the properties of the blend. A simple experimental procedure of styrene (St) addition is proposed to compensate the PS degradation. The effect of St on the chain scission is studied by the PS molecular weight variation and reaction gases evolution. Some hypotheses are worked out to get a basic description of this complex cationic reactive process. © 2009 Wiley Periodicals, Inc.
publishDate 2009
dc.date.none.fl_str_mv 2009-12
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/11336/62612
Diaz, Monica Fatima; Barbosa, Silvia Elena; Capiati, Numa Jose; Effect of styrene addition on polystyrene molecular degradation by Lewis acids; John Wiley & Sons Inc; Journal of Applied Polymer Science; 114; 5; 12-2009; 3081-3086
0021-8995
CONICET Digital
CONICET
url http://hdl.handle.net/11336/62612
identifier_str_mv Diaz, Monica Fatima; Barbosa, Silvia Elena; Capiati, Numa Jose; Effect of styrene addition on polystyrene molecular degradation by Lewis acids; John Wiley & Sons Inc; Journal of Applied Polymer Science; 114; 5; 12-2009; 3081-3086
0021-8995
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/app.30797
info:eu-repo/semantics/altIdentifier/doi/10.1002/app.30797
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
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score 13.070432

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