Synthesis, characterization and dielectric relaxation study of hyperbranched polymers with different molecular architecture

Autores
Giussi, Juan Martín; Azzaroni, Omar; Hensel-Bielowka, Stella; Wojnarowska, Zaneta; Knapik, Justyna; Paluch, Marian
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Hyperbranched polymers are macromolecular systems of high branching density. They play a key role in the forefront of macromolecular synthesis for having features different from those of non-hyperbranched polymers and unique properties that make them amenable for use in a variety of applications. This paper presents the results from the synthesis of hyperbranched polymers of different molecular architecture, i.e., spherical and cylindrical. Also characterization of their thermal and dynamic properties is provided. Atom transfer radical polymerization from star and linear pre-former macroinitiators produced hyperbranched systems based on methyl methacrylate and lauryl methacrylate. Thermal characterizations by TGA and DSC allowed different types of interactions and degradation mechanisms as a function of the determined polymer architecture. NMR studies revealed the effect of molecular architecture on monomers tacticity along the molecular brushes. Spherical architecture yielded a higher isotactic percentage than cylindrical architecture did, thus indicating a specific stereochemistry as a function of the macro-initiator morphology. Broadband dielectric spectroscopy, one of the most powerful techniques to study the dynamics of molecular systems revealed not only different patterns of behavior of hyperbranched polymers of different architectures but also results in agreement with NMR on stereochemistry as a function of molecular architecture.
Fil: Giussi, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Azzaroni, Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Hensel-Bielowka, Stella. University of Silesia; Polonia
Fil: Wojnarowska, Zaneta. University of Silesia; Polonia. Silesian Center for Education and Interdisciplinary Research; Polonia
Fil: Knapik, Justyna. University of Silesia; Polonia. Silesian Center for Education and Interdisciplinary Research; Polonia
Fil: Paluch, Marian. University of Silesia; Polonia. Silesian Center for Education and Interdisciplinary Research; Polonia
Materia
Spectroscopic Characterization
Synthetic Hyperbranched Polymers
Thermal And Dielectric Properties
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:11336/61699
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/61699
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Synthesis, characterization and dielectric relaxation study of hyperbranched polymers with different molecular architectureGiussi, Juan MartínAzzaroni, OmarHensel-Bielowka, StellaWojnarowska, ZanetaKnapik, JustynaPaluch, MarianSpectroscopic CharacterizationSynthetic Hyperbranched PolymersThermal And Dielectric Propertieshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Hyperbranched polymers are macromolecular systems of high branching density. They play a key role in the forefront of macromolecular synthesis for having features different from those of non-hyperbranched polymers and unique properties that make them amenable for use in a variety of applications. This paper presents the results from the synthesis of hyperbranched polymers of different molecular architecture, i.e., spherical and cylindrical. Also characterization of their thermal and dynamic properties is provided. Atom transfer radical polymerization from star and linear pre-former macroinitiators produced hyperbranched systems based on methyl methacrylate and lauryl methacrylate. Thermal characterizations by TGA and DSC allowed different types of interactions and degradation mechanisms as a function of the determined polymer architecture. NMR studies revealed the effect of molecular architecture on monomers tacticity along the molecular brushes. Spherical architecture yielded a higher isotactic percentage than cylindrical architecture did, thus indicating a specific stereochemistry as a function of the macro-initiator morphology. Broadband dielectric spectroscopy, one of the most powerful techniques to study the dynamics of molecular systems revealed not only different patterns of behavior of hyperbranched polymers of different architectures but also results in agreement with NMR on stereochemistry as a function of molecular architecture.Fil: Giussi, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Azzaroni, Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Hensel-Bielowka, Stella. University of Silesia; PoloniaFil: Wojnarowska, Zaneta. University of Silesia; Polonia. Silesian Center for Education and Interdisciplinary Research; PoloniaFil: Knapik, Justyna. University of Silesia; Polonia. Silesian Center for Education and Interdisciplinary Research; PoloniaFil: Paluch, Marian. University of Silesia; Polonia. Silesian Center for Education and Interdisciplinary Research; PoloniaElsevier2016-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/61699Giussi, Juan Martín; Azzaroni, Omar; Hensel-Bielowka, Stella; Wojnarowska, Zaneta; Knapik, Justyna; et al.; Synthesis, characterization and dielectric relaxation study of hyperbranched polymers with different molecular architecture; Elsevier; Polymer; 100; 9-2016; 227-2370032-3861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.polymer.2016.08.027info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S003238611630684Xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:07:29Zoai:ri.conicet.gov.ar:11336/61699instacron: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 13:07:29.822CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Synthesis, characterization and dielectric relaxation study of hyperbranched polymers with different molecular architecture
title Synthesis, characterization and dielectric relaxation study of hyperbranched polymers with different molecular architecture
spellingShingle Synthesis, characterization and dielectric relaxation study of hyperbranched polymers with different molecular architecture
Giussi, Juan Martín
Spectroscopic Characterization
Synthetic Hyperbranched Polymers
Thermal And Dielectric Properties
title_short Synthesis, characterization and dielectric relaxation study of hyperbranched polymers with different molecular architecture
title_full Synthesis, characterization and dielectric relaxation study of hyperbranched polymers with different molecular architecture
title_fullStr Synthesis, characterization and dielectric relaxation study of hyperbranched polymers with different molecular architecture
title_full_unstemmed Synthesis, characterization and dielectric relaxation study of hyperbranched polymers with different molecular architecture
title_sort Synthesis, characterization and dielectric relaxation study of hyperbranched polymers with different molecular architecture
dc.creator.none.fl_str_mv Giussi, Juan Martín
Azzaroni, Omar
Hensel-Bielowka, Stella
Wojnarowska, Zaneta
Knapik, Justyna
Paluch, Marian
author Giussi, Juan Martín
author_facet Giussi, Juan Martín
Azzaroni, Omar
Hensel-Bielowka, Stella
Wojnarowska, Zaneta
Knapik, Justyna
Paluch, Marian
author_role author
author2 Azzaroni, Omar
Hensel-Bielowka, Stella
Wojnarowska, Zaneta
Knapik, Justyna
Paluch, Marian
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Spectroscopic Characterization
Synthetic Hyperbranched Polymers
Thermal And Dielectric Properties
topic Spectroscopic Characterization
Synthetic Hyperbranched Polymers
Thermal And Dielectric Properties
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Hyperbranched polymers are macromolecular systems of high branching density. They play a key role in the forefront of macromolecular synthesis for having features different from those of non-hyperbranched polymers and unique properties that make them amenable for use in a variety of applications. This paper presents the results from the synthesis of hyperbranched polymers of different molecular architecture, i.e., spherical and cylindrical. Also characterization of their thermal and dynamic properties is provided. Atom transfer radical polymerization from star and linear pre-former macroinitiators produced hyperbranched systems based on methyl methacrylate and lauryl methacrylate. Thermal characterizations by TGA and DSC allowed different types of interactions and degradation mechanisms as a function of the determined polymer architecture. NMR studies revealed the effect of molecular architecture on monomers tacticity along the molecular brushes. Spherical architecture yielded a higher isotactic percentage than cylindrical architecture did, thus indicating a specific stereochemistry as a function of the macro-initiator morphology. Broadband dielectric spectroscopy, one of the most powerful techniques to study the dynamics of molecular systems revealed not only different patterns of behavior of hyperbranched polymers of different architectures but also results in agreement with NMR on stereochemistry as a function of molecular architecture.
Fil: Giussi, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Azzaroni, Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Hensel-Bielowka, Stella. University of Silesia; Polonia
Fil: Wojnarowska, Zaneta. University of Silesia; Polonia. Silesian Center for Education and Interdisciplinary Research; Polonia
Fil: Knapik, Justyna. University of Silesia; Polonia. Silesian Center for Education and Interdisciplinary Research; Polonia
Fil: Paluch, Marian. University of Silesia; Polonia. Silesian Center for Education and Interdisciplinary Research; Polonia
description Hyperbranched polymers are macromolecular systems of high branching density. They play a key role in the forefront of macromolecular synthesis for having features different from those of non-hyperbranched polymers and unique properties that make them amenable for use in a variety of applications. This paper presents the results from the synthesis of hyperbranched polymers of different molecular architecture, i.e., spherical and cylindrical. Also characterization of their thermal and dynamic properties is provided. Atom transfer radical polymerization from star and linear pre-former macroinitiators produced hyperbranched systems based on methyl methacrylate and lauryl methacrylate. Thermal characterizations by TGA and DSC allowed different types of interactions and degradation mechanisms as a function of the determined polymer architecture. NMR studies revealed the effect of molecular architecture on monomers tacticity along the molecular brushes. Spherical architecture yielded a higher isotactic percentage than cylindrical architecture did, thus indicating a specific stereochemistry as a function of the macro-initiator morphology. Broadband dielectric spectroscopy, one of the most powerful techniques to study the dynamics of molecular systems revealed not only different patterns of behavior of hyperbranched polymers of different architectures but also results in agreement with NMR on stereochemistry as a function of molecular architecture.
publishDate 2016
dc.date.none.fl_str_mv 2016-09
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/11336/61699
Giussi, Juan Martín; Azzaroni, Omar; Hensel-Bielowka, Stella; Wojnarowska, Zaneta; Knapik, Justyna; et al.; Synthesis, characterization and dielectric relaxation study of hyperbranched polymers with different molecular architecture; Elsevier; Polymer; 100; 9-2016; 227-237
0032-3861
CONICET Digital
CONICET
url http://hdl.handle.net/11336/61699
identifier_str_mv Giussi, Juan Martín; Azzaroni, Omar; Hensel-Bielowka, Stella; Wojnarowska, Zaneta; Knapik, Justyna; et al.; Synthesis, characterization and dielectric relaxation study of hyperbranched polymers with different molecular architecture; Elsevier; Polymer; 100; 9-2016; 227-237
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/doi/10.1016/j.polymer.2016.08.027
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S003238611630684X
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
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 12.993085

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