Polypropylene Nanocomposites Attained by In Situ Polymerization Using SBA-15 Particles as Support for Metallocene Catalysts: Effect of Molecular Weight and Tacticity on Crystalline...
- Autores
- Barranco García, Rosa; García Peñas, Alberto; Blázquez Blázquez, Enrique; Ressia, Jorge Aníbal; Quinzani, Lidia Maria; Valles, Enrique Marcelo; Gómez Elvira, José M.; Pérez, Ernesto; Cerrada, María L.
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In this study, nanocomposites based on polypropylene are synthesized by the in situ polymerization of propene in the presence of mesoporous SBA-15 silica, which acts as a carrier of the catalytic system (zirconocene as catalyst and methylaluminoxane as cocatalyst). The protocol for the immobilization and attainment of hybrid SBA-15 particles involves a pre-stage of contact between the catalyst with cocatalyst before their final functionalization. Two zirconocene catalysts are tested in order to attain materials with different microstructural characteristics, molar masses and regioregularities of chains. Some polypropylene chains are able to be accommodated within the silica mesostructure of these composites. Thus, an endothermic event of small intensity appears during heating calorimetric experiments at approximately 105 °C. The existence of these polypropylene crystals, confined within the nanometric channels of silica, is corroborated by SAXS measurements obtained via the change in the intensity and position of the first-order diffraction of SBA-15. The incorporation of silica also has a very significant effect on the rheological response of the resultant materials, leading to important variations in various magnitudes, such as the shear storage modulus, viscosity and δ angle, when a comparison is established with the corresponding neat iPP matrices. Rheological percolation is reached, thus demonstrating the role of SBA-15 particles as filler, in addition to the supporting role that they exert during the polymerizations.
Fil: Barranco García, Rosa. Instituto en Ciencia y Tecnología de Polímeros; España. Universidad Complutense de Madrid; España
Fil: García Peñas, Alberto. Universidad Carlos III de Madrid. Instituto de Salud; España
Fil: Blázquez Blázquez, Enrique. Instituto en Ciencia y Tecnología de Polímeros; España
Fil: Ressia, Jorge Aníbal. 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. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
Fil: Quinzani, Lidia Maria. 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
Fil: Gómez Elvira, José M.. Instituto en Ciencia y Tecnología de Polímeros; España
Fil: Pérez, Ernesto. Instituto en Ciencia y Tecnología de Polímeros; España
Fil: Cerrada, María L.. Instituto en Ciencia y Tecnología de Polímeros; España - Materia
-
CONFINEMENT
CRYSTALLITES
HYBRID PARTICLES
IN SITU POLYMERIZATION
METALLOCENE CATALYSTS
NANOCOMPOSITES
POLYPROPYLENE
RHEOLOGICAL PERCOLATION
SBA-15 SILICA - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/234232
Ver los metadatos del registro completo
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Polypropylene Nanocomposites Attained by In Situ Polymerization Using SBA-15 Particles as Support for Metallocene Catalysts: Effect of Molecular Weight and Tacticity on Crystalline Details, Phase Transitions and Rheological BehaviorBarranco García, RosaGarcía Peñas, AlbertoBlázquez Blázquez, EnriqueRessia, Jorge AníbalQuinzani, Lidia MariaValles, Enrique MarceloGómez Elvira, José M.Pérez, ErnestoCerrada, María L.CONFINEMENTCRYSTALLITESHYBRID PARTICLESIN SITU POLYMERIZATIONMETALLOCENE CATALYSTSNANOCOMPOSITESPOLYPROPYLENERHEOLOGICAL PERCOLATIONSBA-15 SILICAhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2In this study, nanocomposites based on polypropylene are synthesized by the in situ polymerization of propene in the presence of mesoporous SBA-15 silica, which acts as a carrier of the catalytic system (zirconocene as catalyst and methylaluminoxane as cocatalyst). The protocol for the immobilization and attainment of hybrid SBA-15 particles involves a pre-stage of contact between the catalyst with cocatalyst before their final functionalization. Two zirconocene catalysts are tested in order to attain materials with different microstructural characteristics, molar masses and regioregularities of chains. Some polypropylene chains are able to be accommodated within the silica mesostructure of these composites. Thus, an endothermic event of small intensity appears during heating calorimetric experiments at approximately 105 °C. The existence of these polypropylene crystals, confined within the nanometric channels of silica, is corroborated by SAXS measurements obtained via the change in the intensity and position of the first-order diffraction of SBA-15. The incorporation of silica also has a very significant effect on the rheological response of the resultant materials, leading to important variations in various magnitudes, such as the shear storage modulus, viscosity and δ angle, when a comparison is established with the corresponding neat iPP matrices. Rheological percolation is reached, thus demonstrating the role of SBA-15 particles as filler, in addition to the supporting role that they exert during the polymerizations.Fil: Barranco García, Rosa. Instituto en Ciencia y Tecnología de Polímeros; España. Universidad Complutense de Madrid; EspañaFil: García Peñas, Alberto. Universidad Carlos III de Madrid. Instituto de Salud; EspañaFil: Blázquez Blázquez, Enrique. Instituto en Ciencia y Tecnología de Polímeros; EspañaFil: Ressia, Jorge Aníbal. 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. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; ArgentinaFil: Quinzani, Lidia Maria. 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; ArgentinaFil: Gómez Elvira, José M.. Instituto en Ciencia y Tecnología de Polímeros; EspañaFil: Pérez, Ernesto. Instituto en Ciencia y Tecnología de Polímeros; EspañaFil: Cerrada, María L.. Instituto en Ciencia y Tecnología de Polímeros; EspañaMolecular Diversity Preservation International2023-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/pdfhttp://hdl.handle.net/11336/234232Barranco García, Rosa; García Peñas, Alberto; Blázquez Blázquez, Enrique; Ressia, Jorge Aníbal; Quinzani, Lidia Maria; et al.; Polypropylene Nanocomposites Attained by In Situ Polymerization Using SBA-15 Particles as Support for Metallocene Catalysts: Effect of Molecular Weight and Tacticity on Crystalline Details, Phase Transitions and Rheological Behavior; Molecular Diversity Preservation International; Molecules; 28; 11; 6-2023; 1-261420-3049CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/1420-3049/28/11/4261info:eu-repo/semantics/altIdentifier/doi/10.3390/molecules28114261info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:51:00Zoai:ri.conicet.gov.ar:11336/234232instacron: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 09:51:01.17CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Polypropylene Nanocomposites Attained by In Situ Polymerization Using SBA-15 Particles as Support for Metallocene Catalysts: Effect of Molecular Weight and Tacticity on Crystalline Details, Phase Transitions and Rheological Behavior |
title |
Polypropylene Nanocomposites Attained by In Situ Polymerization Using SBA-15 Particles as Support for Metallocene Catalysts: Effect of Molecular Weight and Tacticity on Crystalline Details, Phase Transitions and Rheological Behavior |
spellingShingle |
Polypropylene Nanocomposites Attained by In Situ Polymerization Using SBA-15 Particles as Support for Metallocene Catalysts: Effect of Molecular Weight and Tacticity on Crystalline Details, Phase Transitions and Rheological Behavior Barranco García, Rosa CONFINEMENT CRYSTALLITES HYBRID PARTICLES IN SITU POLYMERIZATION METALLOCENE CATALYSTS NANOCOMPOSITES POLYPROPYLENE RHEOLOGICAL PERCOLATION SBA-15 SILICA |
title_short |
Polypropylene Nanocomposites Attained by In Situ Polymerization Using SBA-15 Particles as Support for Metallocene Catalysts: Effect of Molecular Weight and Tacticity on Crystalline Details, Phase Transitions and Rheological Behavior |
title_full |
Polypropylene Nanocomposites Attained by In Situ Polymerization Using SBA-15 Particles as Support for Metallocene Catalysts: Effect of Molecular Weight and Tacticity on Crystalline Details, Phase Transitions and Rheological Behavior |
title_fullStr |
Polypropylene Nanocomposites Attained by In Situ Polymerization Using SBA-15 Particles as Support for Metallocene Catalysts: Effect of Molecular Weight and Tacticity on Crystalline Details, Phase Transitions and Rheological Behavior |
title_full_unstemmed |
Polypropylene Nanocomposites Attained by In Situ Polymerization Using SBA-15 Particles as Support for Metallocene Catalysts: Effect of Molecular Weight and Tacticity on Crystalline Details, Phase Transitions and Rheological Behavior |
title_sort |
Polypropylene Nanocomposites Attained by In Situ Polymerization Using SBA-15 Particles as Support for Metallocene Catalysts: Effect of Molecular Weight and Tacticity on Crystalline Details, Phase Transitions and Rheological Behavior |
dc.creator.none.fl_str_mv |
Barranco García, Rosa García Peñas, Alberto Blázquez Blázquez, Enrique Ressia, Jorge Aníbal Quinzani, Lidia Maria Valles, Enrique Marcelo Gómez Elvira, José M. Pérez, Ernesto Cerrada, María L. |
author |
Barranco García, Rosa |
author_facet |
Barranco García, Rosa García Peñas, Alberto Blázquez Blázquez, Enrique Ressia, Jorge Aníbal Quinzani, Lidia Maria Valles, Enrique Marcelo Gómez Elvira, José M. Pérez, Ernesto Cerrada, María L. |
author_role |
author |
author2 |
García Peñas, Alberto Blázquez Blázquez, Enrique Ressia, Jorge Aníbal Quinzani, Lidia Maria Valles, Enrique Marcelo Gómez Elvira, José M. Pérez, Ernesto Cerrada, María L. |
author2_role |
author author author author author author author author |
dc.subject.none.fl_str_mv |
CONFINEMENT CRYSTALLITES HYBRID PARTICLES IN SITU POLYMERIZATION METALLOCENE CATALYSTS NANOCOMPOSITES POLYPROPYLENE RHEOLOGICAL PERCOLATION SBA-15 SILICA |
topic |
CONFINEMENT CRYSTALLITES HYBRID PARTICLES IN SITU POLYMERIZATION METALLOCENE CATALYSTS NANOCOMPOSITES POLYPROPYLENE RHEOLOGICAL PERCOLATION SBA-15 SILICA |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.5 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
In this study, nanocomposites based on polypropylene are synthesized by the in situ polymerization of propene in the presence of mesoporous SBA-15 silica, which acts as a carrier of the catalytic system (zirconocene as catalyst and methylaluminoxane as cocatalyst). The protocol for the immobilization and attainment of hybrid SBA-15 particles involves a pre-stage of contact between the catalyst with cocatalyst before their final functionalization. Two zirconocene catalysts are tested in order to attain materials with different microstructural characteristics, molar masses and regioregularities of chains. Some polypropylene chains are able to be accommodated within the silica mesostructure of these composites. Thus, an endothermic event of small intensity appears during heating calorimetric experiments at approximately 105 °C. The existence of these polypropylene crystals, confined within the nanometric channels of silica, is corroborated by SAXS measurements obtained via the change in the intensity and position of the first-order diffraction of SBA-15. The incorporation of silica also has a very significant effect on the rheological response of the resultant materials, leading to important variations in various magnitudes, such as the shear storage modulus, viscosity and δ angle, when a comparison is established with the corresponding neat iPP matrices. Rheological percolation is reached, thus demonstrating the role of SBA-15 particles as filler, in addition to the supporting role that they exert during the polymerizations. Fil: Barranco García, Rosa. Instituto en Ciencia y Tecnología de Polímeros; España. Universidad Complutense de Madrid; España Fil: García Peñas, Alberto. Universidad Carlos III de Madrid. Instituto de Salud; España Fil: Blázquez Blázquez, Enrique. Instituto en Ciencia y Tecnología de Polímeros; España Fil: Ressia, Jorge Aníbal. 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. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina Fil: Quinzani, Lidia Maria. 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 Fil: Gómez Elvira, José M.. Instituto en Ciencia y Tecnología de Polímeros; España Fil: Pérez, Ernesto. Instituto en Ciencia y Tecnología de Polímeros; España Fil: Cerrada, María L.. Instituto en Ciencia y Tecnología de Polímeros; España |
description |
In this study, nanocomposites based on polypropylene are synthesized by the in situ polymerization of propene in the presence of mesoporous SBA-15 silica, which acts as a carrier of the catalytic system (zirconocene as catalyst and methylaluminoxane as cocatalyst). The protocol for the immobilization and attainment of hybrid SBA-15 particles involves a pre-stage of contact between the catalyst with cocatalyst before their final functionalization. Two zirconocene catalysts are tested in order to attain materials with different microstructural characteristics, molar masses and regioregularities of chains. Some polypropylene chains are able to be accommodated within the silica mesostructure of these composites. Thus, an endothermic event of small intensity appears during heating calorimetric experiments at approximately 105 °C. The existence of these polypropylene crystals, confined within the nanometric channels of silica, is corroborated by SAXS measurements obtained via the change in the intensity and position of the first-order diffraction of SBA-15. The incorporation of silica also has a very significant effect on the rheological response of the resultant materials, leading to important variations in various magnitudes, such as the shear storage modulus, viscosity and δ angle, when a comparison is established with the corresponding neat iPP matrices. Rheological percolation is reached, thus demonstrating the role of SBA-15 particles as filler, in addition to the supporting role that they exert during the polymerizations. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-06 |
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/11336/234232 Barranco García, Rosa; García Peñas, Alberto; Blázquez Blázquez, Enrique; Ressia, Jorge Aníbal; Quinzani, Lidia Maria; et al.; Polypropylene Nanocomposites Attained by In Situ Polymerization Using SBA-15 Particles as Support for Metallocene Catalysts: Effect of Molecular Weight and Tacticity on Crystalline Details, Phase Transitions and Rheological Behavior; Molecular Diversity Preservation International; Molecules; 28; 11; 6-2023; 1-26 1420-3049 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/234232 |
identifier_str_mv |
Barranco García, Rosa; García Peñas, Alberto; Blázquez Blázquez, Enrique; Ressia, Jorge Aníbal; Quinzani, Lidia Maria; et al.; Polypropylene Nanocomposites Attained by In Situ Polymerization Using SBA-15 Particles as Support for Metallocene Catalysts: Effect of Molecular Weight and Tacticity on Crystalline Details, Phase Transitions and Rheological Behavior; Molecular Diversity Preservation International; Molecules; 28; 11; 6-2023; 1-26 1420-3049 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.mdpi.com/1420-3049/28/11/4261 info:eu-repo/semantics/altIdentifier/doi/10.3390/molecules28114261 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/vnd.openxmlformats-officedocument.wordprocessingml.document application/pdf |
dc.publisher.none.fl_str_mv |
Molecular Diversity Preservation International |
publisher.none.fl_str_mv |
Molecular Diversity Preservation International |
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) |
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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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1844613569753120768 |
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13.070432 |