A Polycaprolactone-Based Compatibilization Treatment to Improve Dispersion and Interphase Structure of Silica Polyurethane Composites

Autores
Chiacchiarelli, Leonel Matias; Monsalve, Leandro Nicolas; Vazquez, Analia; Kenny, José M.; Torre, Luigi
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Silica nanoparticles (SNs) were grafted with ecaprolactone using an environmentally friendly approach. By using tartaric acid as a catalyst and the silanol groups as initiators, grafted nanoparticles (GNs) with organic weight fractions (wof) within the range 0–46 wt% were synthesized. Thermogravimetric (TGA) and infrared analysis were used to measure the wof and to corroborate the covalent bond between the SN and the caprolactone monomer. Transmission electron micrographs of the polyurethane (PU) nanocomposites based on the SN and the GN revealed that the interfacial area of the GNbased PU increased by the reduction of agglomerate dimensions from 10 mm to around 0.1 mm. Dynamic mechanical analysis showed that the GN nanocomposites improved the storage shear modulus from 616611 to 84968 MPa for a GN with wof5 16.7% and 3 wt% filler concentration. In addition, the GN particles prevented a relevant decrease of the transition temperature (Tg). Differential scanning calorimetry corroborated that GN increased the enthalpic energy associated to the physical crosslinking of the hard segments (HS). Wide-angle X-ray diffraction proved that the GN formed a HS structure with improved crystallinity. The thermal stability of the GN-based PU a nanocomposite was improved by an increase of the thermal stability of the castor oil soft segments.
Fil: Chiacchiarelli, Leonel Matias. Universita Di Perugia; Italia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Monsalve, Leandro Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina
Fil: Vazquez, Analia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina
Fil: Kenny, José M.. Universita Di Perugia; Italia. Consejo Superior de Investigaciones Cientificas; España
Fil: Torre, Luigi. Universita Di Perugia; Italia
Materia
Polycaprolactone
Polyurethane
Silica
Nanocomposite
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:11336/18702
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/18702
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A Polycaprolactone-Based Compatibilization Treatment to Improve Dispersion and Interphase Structure of Silica Polyurethane CompositesChiacchiarelli, Leonel MatiasMonsalve, Leandro NicolasVazquez, AnaliaKenny, José M.Torre, LuigiPolycaprolactonePolyurethaneSilicaNanocompositehttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Silica nanoparticles (SNs) were grafted with ecaprolactone using an environmentally friendly approach. By using tartaric acid as a catalyst and the silanol groups as initiators, grafted nanoparticles (GNs) with organic weight fractions (wof) within the range 0–46 wt% were synthesized. Thermogravimetric (TGA) and infrared analysis were used to measure the wof and to corroborate the covalent bond between the SN and the caprolactone monomer. Transmission electron micrographs of the polyurethane (PU) nanocomposites based on the SN and the GN revealed that the interfacial area of the GNbased PU increased by the reduction of agglomerate dimensions from 10 mm to around 0.1 mm. Dynamic mechanical analysis showed that the GN nanocomposites improved the storage shear modulus from 616611 to 84968 MPa for a GN with wof5 16.7% and 3 wt% filler concentration. In addition, the GN particles prevented a relevant decrease of the transition temperature (Tg). Differential scanning calorimetry corroborated that GN increased the enthalpic energy associated to the physical crosslinking of the hard segments (HS). Wide-angle X-ray diffraction proved that the GN formed a HS structure with improved crystallinity. The thermal stability of the GN-based PU a nanocomposite was improved by an increase of the thermal stability of the castor oil soft segments.Fil: Chiacchiarelli, Leonel Matias. Universita Di Perugia; Italia. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Monsalve, Leandro Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; ArgentinaFil: Vazquez, Analia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; ArgentinaFil: Kenny, José M.. Universita Di Perugia; Italia. Consejo Superior de Investigaciones Cientificas; EspañaFil: Torre, Luigi. Universita Di Perugia; ItaliaWiley2014-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/18702Chiacchiarelli, Leonel Matias; Monsalve, Leandro Nicolas; Vazquez, Analia; Kenny, José M.; Torre, Luigi; A Polycaprolactone-Based Compatibilization Treatment to Improve Dispersion and Interphase Structure of Silica Polyurethane Composites; Wiley; Polymer Engineering And Science; 54; 8; 8-2014; 1817-18260032-3888CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/pen.23723info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/pen.23723/abstractinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:42:37Zoai:ri.conicet.gov.ar:11336/18702instacron: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 14:42:37.845CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A Polycaprolactone-Based Compatibilization Treatment to Improve Dispersion and Interphase Structure of Silica Polyurethane Composites
title A Polycaprolactone-Based Compatibilization Treatment to Improve Dispersion and Interphase Structure of Silica Polyurethane Composites
spellingShingle A Polycaprolactone-Based Compatibilization Treatment to Improve Dispersion and Interphase Structure of Silica Polyurethane Composites
Chiacchiarelli, Leonel Matias
Polycaprolactone
Polyurethane
Silica
Nanocomposite
title_short A Polycaprolactone-Based Compatibilization Treatment to Improve Dispersion and Interphase Structure of Silica Polyurethane Composites
title_full A Polycaprolactone-Based Compatibilization Treatment to Improve Dispersion and Interphase Structure of Silica Polyurethane Composites
title_fullStr A Polycaprolactone-Based Compatibilization Treatment to Improve Dispersion and Interphase Structure of Silica Polyurethane Composites
title_full_unstemmed A Polycaprolactone-Based Compatibilization Treatment to Improve Dispersion and Interphase Structure of Silica Polyurethane Composites
title_sort A Polycaprolactone-Based Compatibilization Treatment to Improve Dispersion and Interphase Structure of Silica Polyurethane Composites
dc.creator.none.fl_str_mv Chiacchiarelli, Leonel Matias
Monsalve, Leandro Nicolas
Vazquez, Analia
Kenny, José M.
Torre, Luigi
author Chiacchiarelli, Leonel Matias
author_facet Chiacchiarelli, Leonel Matias
Monsalve, Leandro Nicolas
Vazquez, Analia
Kenny, José M.
Torre, Luigi
author_role author
author2 Monsalve, Leandro Nicolas
Vazquez, Analia
Kenny, José M.
Torre, Luigi
author2_role author
author
author
author
dc.subject.none.fl_str_mv Polycaprolactone
Polyurethane
Silica
Nanocomposite
topic Polycaprolactone
Polyurethane
Silica
Nanocomposite
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Silica nanoparticles (SNs) were grafted with ecaprolactone using an environmentally friendly approach. By using tartaric acid as a catalyst and the silanol groups as initiators, grafted nanoparticles (GNs) with organic weight fractions (wof) within the range 0–46 wt% were synthesized. Thermogravimetric (TGA) and infrared analysis were used to measure the wof and to corroborate the covalent bond between the SN and the caprolactone monomer. Transmission electron micrographs of the polyurethane (PU) nanocomposites based on the SN and the GN revealed that the interfacial area of the GNbased PU increased by the reduction of agglomerate dimensions from 10 mm to around 0.1 mm. Dynamic mechanical analysis showed that the GN nanocomposites improved the storage shear modulus from 616611 to 84968 MPa for a GN with wof5 16.7% and 3 wt% filler concentration. In addition, the GN particles prevented a relevant decrease of the transition temperature (Tg). Differential scanning calorimetry corroborated that GN increased the enthalpic energy associated to the physical crosslinking of the hard segments (HS). Wide-angle X-ray diffraction proved that the GN formed a HS structure with improved crystallinity. The thermal stability of the GN-based PU a nanocomposite was improved by an increase of the thermal stability of the castor oil soft segments.
Fil: Chiacchiarelli, Leonel Matias. Universita Di Perugia; Italia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Monsalve, Leandro Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina
Fil: Vazquez, Analia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina
Fil: Kenny, José M.. Universita Di Perugia; Italia. Consejo Superior de Investigaciones Cientificas; España
Fil: Torre, Luigi. Universita Di Perugia; Italia
description Silica nanoparticles (SNs) were grafted with ecaprolactone using an environmentally friendly approach. By using tartaric acid as a catalyst and the silanol groups as initiators, grafted nanoparticles (GNs) with organic weight fractions (wof) within the range 0–46 wt% were synthesized. Thermogravimetric (TGA) and infrared analysis were used to measure the wof and to corroborate the covalent bond between the SN and the caprolactone monomer. Transmission electron micrographs of the polyurethane (PU) nanocomposites based on the SN and the GN revealed that the interfacial area of the GNbased PU increased by the reduction of agglomerate dimensions from 10 mm to around 0.1 mm. Dynamic mechanical analysis showed that the GN nanocomposites improved the storage shear modulus from 616611 to 84968 MPa for a GN with wof5 16.7% and 3 wt% filler concentration. In addition, the GN particles prevented a relevant decrease of the transition temperature (Tg). Differential scanning calorimetry corroborated that GN increased the enthalpic energy associated to the physical crosslinking of the hard segments (HS). Wide-angle X-ray diffraction proved that the GN formed a HS structure with improved crystallinity. The thermal stability of the GN-based PU a nanocomposite was improved by an increase of the thermal stability of the castor oil soft segments.
publishDate 2014
dc.date.none.fl_str_mv 2014-08
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/11336/18702
Chiacchiarelli, Leonel Matias; Monsalve, Leandro Nicolas; Vazquez, Analia; Kenny, José M.; Torre, Luigi; A Polycaprolactone-Based Compatibilization Treatment to Improve Dispersion and Interphase Structure of Silica Polyurethane Composites; Wiley; Polymer Engineering And Science; 54; 8; 8-2014; 1817-1826
0032-3888
CONICET Digital
CONICET
url http://hdl.handle.net/11336/18702
identifier_str_mv Chiacchiarelli, Leonel Matias; Monsalve, Leandro Nicolas; Vazquez, Analia; Kenny, José M.; Torre, Luigi; A Polycaprolactone-Based Compatibilization Treatment to Improve Dispersion and Interphase Structure of Silica Polyurethane Composites; Wiley; Polymer Engineering And Science; 54; 8; 8-2014; 1817-1826
0032-3888
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/pen.23723
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/pen.23723/abstract
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 Wiley
publisher.none.fl_str_mv Wiley
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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