One-pot thermo-remendable shape memory polyurethanes

Furan-based thermoset polyurethanes have been prepared in a one-pot fashion with the ability to self-mend under mild temperature conditions, by making use of a Diels-Alder shape-memory assisted self-mending (DASMASH) approach. For this, thermoreversible covalent bonds, obtained by Diels-Alder chemis...

ver descrição completa

Detalhes bibliográficos
Autores: Rivero, Guadalupe, Nguyen, Le-thu T., Hillewaere, Xander K. D., Du Prez, Filip E.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/5897
Acesso em linha:http://hdl.handle.net/11336/5897
Access Level:acceso abierto
Palavra-chave:Self-Healing
Shape-Memory
Polyurethanes
One-Pot
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
id AR_8ae981b68a5dca854ed4c54febf43ef2
oai_identifier_str oai:ri.conicet.gov.ar:11336/5897
network_acronym_str AR
network_name_str Argentina
repository_id_str
spelling One-pot thermo-remendable shape memory polyurethanesRivero, GuadalupeNguyen, Le-thu T.Hillewaere, Xander K. D.Du Prez, Filip E.Self-HealingShape-MemoryPolyurethanesOne-Pothttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Furan-based thermoset polyurethanes have been prepared in a one-pot fashion with the ability to self-mend under mild temperature conditions, by making use of a Diels-Alder shape-memory assisted self-mending (DASMASH) approach. For this, thermoreversible covalent bonds, obtained by Diels-Alder chemistry, are introduced as crosslinkers into a polycaprolactone (PCL) containing polyurethane material. It is demonstrated that, after introduction of a crack into the PU-thermoset, Diels-Alder bonds preferentially break, regenerating free furan/maleimide functional groups, while the shape memory effect favors the crack closure at temperatures above the melting point of PCL, simultaneously resulting in a reformation of the reversible crosslinks. The reversibility and shape memory ability of the materials were optimized and studied by FTIR, 1H NMR and tensile measurements. Different compositions were used to properly understand the role and influence of each component. The polyurethane materials healed at 50°C after mechanical damage induced by either the application of a large tensile deformation or by performing controlled macro/micro scratches with a depth sensing indenter. On-line FT-IR monitoring provided a kinetic description of the system reversibility for numerous cycles. Furthermore, mechanical recovery with complete disappearance of the microscratches was accomplished after multiple cycles of large tensile deformation. The results were not only confirmed by an optical inspection and scanning electron microscopy, but also with confocal microscopic mapping, by comparison of the cross-section profiles of the microscratches before and after healing.Fil: Rivero, Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Nguyen, Le-thu T.. University Of Ghent. Faculty Of Sciences. Department Of Organic Chemistry. Polymer Chemistry Research Group; BélgicaFil: Hillewaere, Xander K. D.. University Of Ghent. Faculty Of Sciences. Department Of Organic Chemistry. Polymer Chemistry Research Group; BélgicaFil: Du Prez, Filip E.. University Of Ghent. Faculty Of Sciences. Department Of Organic Chemistry. Polymer Chemistry Research Group; BélgicaAmerican Chemical Society2014-03-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5897Rivero, Guadalupe; Nguyen, Le-thu T.; Hillewaere, Xander K. D.; Du Prez, Filip E.; One-pot thermo-remendable shape memory polyurethanes; American Chemical Society; Macromolecules; 47; 6; 14-3-2014; 2010-20180024-9297enginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1021/ma402471cinfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/ma402471cinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:53:01Zoai:ri.conicet.gov.ar:11336/5897instacron: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:34982024-05-08 13:53:01.845CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv One-pot thermo-remendable shape memory polyurethanes
title One-pot thermo-remendable shape memory polyurethanes
spellingShingle One-pot thermo-remendable shape memory polyurethanes
Rivero, Guadalupe
Self-Healing
Shape-Memory
Polyurethanes
One-Pot
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
title_short One-pot thermo-remendable shape memory polyurethanes
title_full One-pot thermo-remendable shape memory polyurethanes
title_fullStr One-pot thermo-remendable shape memory polyurethanes
title_full_unstemmed One-pot thermo-remendable shape memory polyurethanes
title_sort One-pot thermo-remendable shape memory polyurethanes
dc.creator.none.fl_str_mv Rivero, Guadalupe
Nguyen, Le-thu T.
Hillewaere, Xander K. D.
Du Prez, Filip E.
author Rivero, Guadalupe
author_facet Rivero, Guadalupe
Nguyen, Le-thu T.
Hillewaere, Xander K. D.
Du Prez, Filip E.
author_role author
author2 Nguyen, Le-thu T.
Hillewaere, Xander K. D.
Du Prez, Filip E.
author2_role author
author
author
dc.subject.none.fl_str_mv Self-Healing
Shape-Memory
Polyurethanes
One-Pot
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
topic Self-Healing
Shape-Memory
Polyurethanes
One-Pot
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
description Furan-based thermoset polyurethanes have been prepared in a one-pot fashion with the ability to self-mend under mild temperature conditions, by making use of a Diels-Alder shape-memory assisted self-mending (DASMASH) approach. For this, thermoreversible covalent bonds, obtained by Diels-Alder chemistry, are introduced as crosslinkers into a polycaprolactone (PCL) containing polyurethane material. It is demonstrated that, after introduction of a crack into the PU-thermoset, Diels-Alder bonds preferentially break, regenerating free furan/maleimide functional groups, while the shape memory effect favors the crack closure at temperatures above the melting point of PCL, simultaneously resulting in a reformation of the reversible crosslinks. The reversibility and shape memory ability of the materials were optimized and studied by FTIR, 1H NMR and tensile measurements. Different compositions were used to properly understand the role and influence of each component. The polyurethane materials healed at 50°C after mechanical damage induced by either the application of a large tensile deformation or by performing controlled macro/micro scratches with a depth sensing indenter. On-line FT-IR monitoring provided a kinetic description of the system reversibility for numerous cycles. Furthermore, mechanical recovery with complete disappearance of the microscratches was accomplished after multiple cycles of large tensile deformation. The results were not only confirmed by an optical inspection and scanning electron microscopy, but also with confocal microscopic mapping, by comparison of the cross-section profiles of the microscratches before and after healing.
publishDate 2014
dc.date.none.fl_str_mv 2014-03-14
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/11336/5897
Rivero, Guadalupe; Nguyen, Le-thu T.; Hillewaere, Xander K. D.; Du Prez, Filip E.; One-pot thermo-remendable shape memory polyurethanes; American Chemical Society; Macromolecules; 47; 6; 14-3-2014; 2010-2018
0024-9297
url http://hdl.handle.net/11336/5897
identifier_str_mv Rivero, Guadalupe; Nguyen, Le-thu T.; Hillewaere, Xander K. D.; Du Prez, Filip E.; One-pot thermo-remendable shape memory polyurethanes; American Chemical Society; Macromolecules; 47; 6; 14-3-2014; 2010-2018
0024-9297
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.1021/ma402471c
info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/ma402471c
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 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
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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
_version_ 1799195453789569024
score 15.812429

Registos relacionados