Hybrid epoxy networks from ethoxysilyl-modified hyperbranched poly(ethyleneimine) and inorganic reactive precursors

New epoxy-silica hybrid coatings were prepared by a dual process consisting of a sol-gel process using tetraethoxysilane (TEOS) or 3-glycidyloxypropyl trimethoxysilane (GPTMS) in the presence of hyperbranched poly(ethyleneimine) with ethoxysilyl groups at the chain ends (PEI-Si) followed by a homopo...

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Autores: Acebo Gorostiza, Cristina, Fernández Francos, Xavier|||0000-0002-3492-2922, Santos, Jose-Ignacio, Messori, Massimo, Ramis Juan, Xavier|||0000-0003-2550-7185, Serra Albet, Maria Àngels|||0000-0003-1387-0358
Formato: artículo
Fecha de publicación:2015
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/80069
Acesso em linha:https://hdl.handle.net/2117/80069
https://dx.doi.org/10.1016/j.eurpolymj.2015.06.029
Access Level:acceso abierto
Palavra-chave:Epoxy resins
Hydrolysis
Polymers
Hyperbranched polymers
Epoxy resin
Sol-gel
Coatings
Hybrids
Resines epoxídiques
Hidròlisi
Polímers
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spelling Hybrid epoxy networks from ethoxysilyl-modified hyperbranched poly(ethyleneimine) and inorganic reactive precursorsAcebo Gorostiza, CristinaFernández Francos, Xavier|||0000-0002-3492-2922Santos, Jose-IgnacioMessori, MassimoRamis Juan, Xavier|||0000-0003-2550-7185Serra Albet, Maria Àngels|||0000-0003-1387-0358Epoxy resinsHydrolysisPolymersHyperbranched polymersEpoxy resinSol-gelCoatingsHybridsResines epoxídiquesHidròlisiPolímersNew epoxy-silica hybrid coatings were prepared by a dual process consisting of a sol-gel process using tetraethoxysilane (TEOS) or 3-glycidyloxypropyl trimethoxysilane (GPTMS) in the presence of hyperbranched poly(ethyleneimine) with ethoxysilyl groups at the chain ends (PEI-Si) followed by a homopolymerization of diglycidylether of bisphenol A (DGEBA) using 1-methylimidazole (1-MI) as anionic initiator. The influence of the amount of TEOS and GPTMS in the characteristics of the coating was examined.; Thin transparent films were obtained and their morphology was observed by transmission electron microscopy (TEM). The hydrolytic condensation was confirmed by Si-29 NMR studies. Cage-like nanometric structures were formed in case of adding GPTMS and bigger silica particles on adding TEOS to the formulation. Thermal stability was evaluated by thermogravimetry and the scratch resistance properties were also investigated, showing an improvement in resistance to break and to detachment in all the coatings containing GPTMS. (C) 2015 Elsevier Ltd. All rights reserved.20152015-09-0120152015-12-01journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/80069https://dx.doi.org/10.1016/j.eurpolymj.2015.06.029reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2http://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/800692026-05-27T15:37:01Z
dc.title.none.fl_str_mv Hybrid epoxy networks from ethoxysilyl-modified hyperbranched poly(ethyleneimine) and inorganic reactive precursors
title Hybrid epoxy networks from ethoxysilyl-modified hyperbranched poly(ethyleneimine) and inorganic reactive precursors
spellingShingle Hybrid epoxy networks from ethoxysilyl-modified hyperbranched poly(ethyleneimine) and inorganic reactive precursors
Acebo Gorostiza, Cristina
Epoxy resins
Hydrolysis
Polymers
Hyperbranched polymers
Epoxy resin
Sol-gel
Coatings
Hybrids
Resines epoxídiques
Hidròlisi
Polímers
title_short Hybrid epoxy networks from ethoxysilyl-modified hyperbranched poly(ethyleneimine) and inorganic reactive precursors
title_full Hybrid epoxy networks from ethoxysilyl-modified hyperbranched poly(ethyleneimine) and inorganic reactive precursors
title_fullStr Hybrid epoxy networks from ethoxysilyl-modified hyperbranched poly(ethyleneimine) and inorganic reactive precursors
title_full_unstemmed Hybrid epoxy networks from ethoxysilyl-modified hyperbranched poly(ethyleneimine) and inorganic reactive precursors
title_sort Hybrid epoxy networks from ethoxysilyl-modified hyperbranched poly(ethyleneimine) and inorganic reactive precursors
dc.creator.none.fl_str_mv Acebo Gorostiza, Cristina
Fernández Francos, Xavier|||0000-0002-3492-2922
Santos, Jose-Ignacio
Messori, Massimo
Ramis Juan, Xavier|||0000-0003-2550-7185
Serra Albet, Maria Àngels|||0000-0003-1387-0358
author Acebo Gorostiza, Cristina
author_facet Acebo Gorostiza, Cristina
Fernández Francos, Xavier|||0000-0002-3492-2922
Santos, Jose-Ignacio
Messori, Massimo
Ramis Juan, Xavier|||0000-0003-2550-7185
Serra Albet, Maria Àngels|||0000-0003-1387-0358
author_role author
author2 Fernández Francos, Xavier|||0000-0002-3492-2922
Santos, Jose-Ignacio
Messori, Massimo
Ramis Juan, Xavier|||0000-0003-2550-7185
Serra Albet, Maria Àngels|||0000-0003-1387-0358
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Epoxy resins
Hydrolysis
Polymers
Hyperbranched polymers
Epoxy resin
Sol-gel
Coatings
Hybrids
Resines epoxídiques
Hidròlisi
Polímers
topic Epoxy resins
Hydrolysis
Polymers
Hyperbranched polymers
Epoxy resin
Sol-gel
Coatings
Hybrids
Resines epoxídiques
Hidròlisi
Polímers
description New epoxy-silica hybrid coatings were prepared by a dual process consisting of a sol-gel process using tetraethoxysilane (TEOS) or 3-glycidyloxypropyl trimethoxysilane (GPTMS) in the presence of hyperbranched poly(ethyleneimine) with ethoxysilyl groups at the chain ends (PEI-Si) followed by a homopolymerization of diglycidylether of bisphenol A (DGEBA) using 1-methylimidazole (1-MI) as anionic initiator. The influence of the amount of TEOS and GPTMS in the characteristics of the coating was examined.; Thin transparent films were obtained and their morphology was observed by transmission electron microscopy (TEM). The hydrolytic condensation was confirmed by Si-29 NMR studies. Cage-like nanometric structures were formed in case of adding GPTMS and bigger silica particles on adding TEOS to the formulation. Thermal stability was evaluated by thermogravimetry and the scratch resistance properties were also investigated, showing an improvement in resistance to break and to detachment in all the coatings containing GPTMS. (C) 2015 Elsevier Ltd. All rights reserved.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-09-01
2015
2015-12-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/80069
https://dx.doi.org/10.1016/j.eurpolymj.2015.06.029
url https://hdl.handle.net/2117/80069
https://dx.doi.org/10.1016/j.eurpolymj.2015.06.029
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405034353000448
score 15.301603

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