Demixing of polypropylene/polystyrene blends by near-critical selective solubilization

Autores
Martini, Raquel Evangelina; Barbosa, Silvia Elena; Brignole, Esteban Alberto
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Blend phase characterization is a fundamental step in a polymer blend study. To analyze the blend composition and morphology, the separation of thermoplastic polymer blends into its components is the method used. This separation by traditional techniques, such as Soxhlet, is very difficult because of the high molecular weight molecules of the polymer blend components. The use of a high-temperature-high-pressure near-critical solvent is an interesting alternative that results in a complete and fast separation. In this work, a systematic study of the demixing of polypropylene (PP)/polystyrene (PS) blends is presented. First, the selectivity of n-alkanes was explored at high pressure and over a wide range of temperatures on pure polymers. From this study the processing window for blend separation was obtained. Second, the influence of the blend morphology and composition on the separation efficiency was analyzed. The method was applied to analyze and quantify the copolymer formed in a PP/PS in situ compatibilized blend. It is concluded that the method proppsed for blend separation is simple, fast, and accurate for the systems analyzed.
Fil: Martini, Raquel Evangelina. 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: Brignole, Esteban Alberto. 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
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:11336/37605
Acceder
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spelling Demixing of polypropylene/polystyrene blends by near-critical selective solubilizationMartini, Raquel EvangelinaBarbosa, Silvia ElenaBrignole, Esteban Albertohttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Blend phase characterization is a fundamental step in a polymer blend study. To analyze the blend composition and morphology, the separation of thermoplastic polymer blends into its components is the method used. This separation by traditional techniques, such as Soxhlet, is very difficult because of the high molecular weight molecules of the polymer blend components. The use of a high-temperature-high-pressure near-critical solvent is an interesting alternative that results in a complete and fast separation. In this work, a systematic study of the demixing of polypropylene (PP)/polystyrene (PS) blends is presented. First, the selectivity of n-alkanes was explored at high pressure and over a wide range of temperatures on pure polymers. From this study the processing window for blend separation was obtained. Second, the influence of the blend morphology and composition on the separation efficiency was analyzed. The method was applied to analyze and quantify the copolymer formed in a PP/PS in situ compatibilized blend. It is concluded that the method proppsed for blend separation is simple, fast, and accurate for the systems analyzed.Fil: Martini, Raquel Evangelina. 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: Brignole, Esteban Alberto. 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; ArgentinaAmerican Chemical Society2006-05info: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/11336/37605Martini, Raquel Evangelina; Barbosa, Silvia Elena; Brignole, Esteban Alberto; Demixing of polypropylene/polystyrene blends by near-critical selective solubilization; American Chemical Society; Industrial & Engineering Chemical Research; 45; 10; 5-2006; 3393-33990888-5885CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/ie050715ginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/abs/10.1021/ie050715ginfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:34:08Zoai:ri.conicet.gov.ar:11336/37605instacron: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 09:34:09.061CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Demixing of polypropylene/polystyrene blends by near-critical selective solubilization
title Demixing of polypropylene/polystyrene blends by near-critical selective solubilization
spellingShingle Demixing of polypropylene/polystyrene blends by near-critical selective solubilization
Martini, Raquel Evangelina
title_short Demixing of polypropylene/polystyrene blends by near-critical selective solubilization
title_full Demixing of polypropylene/polystyrene blends by near-critical selective solubilization
title_fullStr Demixing of polypropylene/polystyrene blends by near-critical selective solubilization
title_full_unstemmed Demixing of polypropylene/polystyrene blends by near-critical selective solubilization
title_sort Demixing of polypropylene/polystyrene blends by near-critical selective solubilization
dc.creator.none.fl_str_mv Martini, Raquel Evangelina
Barbosa, Silvia Elena
Brignole, Esteban Alberto
author Martini, Raquel Evangelina
author_facet Martini, Raquel Evangelina
Barbosa, Silvia Elena
Brignole, Esteban Alberto
author_role author
author2 Barbosa, Silvia Elena
Brignole, Esteban Alberto
author2_role author
author
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Blend phase characterization is a fundamental step in a polymer blend study. To analyze the blend composition and morphology, the separation of thermoplastic polymer blends into its components is the method used. This separation by traditional techniques, such as Soxhlet, is very difficult because of the high molecular weight molecules of the polymer blend components. The use of a high-temperature-high-pressure near-critical solvent is an interesting alternative that results in a complete and fast separation. In this work, a systematic study of the demixing of polypropylene (PP)/polystyrene (PS) blends is presented. First, the selectivity of n-alkanes was explored at high pressure and over a wide range of temperatures on pure polymers. From this study the processing window for blend separation was obtained. Second, the influence of the blend morphology and composition on the separation efficiency was analyzed. The method was applied to analyze and quantify the copolymer formed in a PP/PS in situ compatibilized blend. It is concluded that the method proppsed for blend separation is simple, fast, and accurate for the systems analyzed.
Fil: Martini, Raquel Evangelina. 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: Brignole, Esteban Alberto. 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 Blend phase characterization is a fundamental step in a polymer blend study. To analyze the blend composition and morphology, the separation of thermoplastic polymer blends into its components is the method used. This separation by traditional techniques, such as Soxhlet, is very difficult because of the high molecular weight molecules of the polymer blend components. The use of a high-temperature-high-pressure near-critical solvent is an interesting alternative that results in a complete and fast separation. In this work, a systematic study of the demixing of polypropylene (PP)/polystyrene (PS) blends is presented. First, the selectivity of n-alkanes was explored at high pressure and over a wide range of temperatures on pure polymers. From this study the processing window for blend separation was obtained. Second, the influence of the blend morphology and composition on the separation efficiency was analyzed. The method was applied to analyze and quantify the copolymer formed in a PP/PS in situ compatibilized blend. It is concluded that the method proppsed for blend separation is simple, fast, and accurate for the systems analyzed.
publishDate 2006
dc.date.none.fl_str_mv 2006-05
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/11336/37605
Martini, Raquel Evangelina; Barbosa, Silvia Elena; Brignole, Esteban Alberto; Demixing of polypropylene/polystyrene blends by near-critical selective solubilization; American Chemical Society; Industrial & Engineering Chemical Research; 45; 10; 5-2006; 3393-3399
0888-5885
CONICET Digital
CONICET
url http://hdl.handle.net/11336/37605
identifier_str_mv Martini, Raquel Evangelina; Barbosa, Silvia Elena; Brignole, Esteban Alberto; Demixing of polypropylene/polystyrene blends by near-critical selective solubilization; American Chemical Society; Industrial & Engineering Chemical Research; 45; 10; 5-2006; 3393-3399
0888-5885
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/ie050715g
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/abs/10.1021/ie050715g
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 American Chemical Society
publisher.none.fl_str_mv American Chemical Society
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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