Coumarin based light responsive healable waterborne polyurethanes

Waterborne polyurethanes containing coumarin as chain extenders were successfully synthesized. Taking advantage of the photoinduced [2+2] cycloaddition reaction of coumarin moieties, this work evaluated the healing abilities of these materials. The photochemical process was analyzed by UV spectrosco...

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Authors: Aguirresarobe Hernández, Robert, Martin, Loli, Aramburu Ocáriz, Nora, Irusta Maritxalar, María Lourdes, Fernández Berridi, María José
Format: article
Publication Date:2016
Country:España
Institution:Universidad del País Vasco
Repository:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/72129
Online Access:http://hdl.handle.net/10810/72129
Access Level:Open access
Keyword:Coumarin
waterborne polyurethanes
sunlight
light responsive
healing
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spelling Coumarin based light responsive healable waterborne polyurethanesAguirresarobe Hernández, RobertMartin, LoliAramburu Ocáriz, NoraIrusta Maritxalar, María LourdesFernández Berridi, María JoséCoumarinwaterborne polyurethanessunlightlight responsivehealingWaterborne polyurethanes containing coumarin as chain extenders were successfully synthesized. Taking advantage of the photoinduced [2+2] cycloaddition reaction of coumarin moieties, this work evaluated the healing abilities of these materials. The photochemical process was analyzed by UV spectroscopy and the cycloaddition reaction kinetics was studied. In addition, the healing abilities of the synthesized waterborne polyurethanes were determined by means of scratch refilling studies and strain-stress tests. The irradiation conditions as well as the polymeric chain mobility on the fracture and the capacity to generate polymer networks by coumarin linkages were demonstrated to be the main factors affecting the healing process. The behavior of these systems was also determined under the direct irradiation of sunlight.The authors acknowledge the University of the Basque Country UPV/EHU (UFI 11/56), the Basque Government (Ayuda a grupos de investigación del sistema universitario vasco IT 618/13 and PhD scholarship) and the Ministerio de Economía y Competitividad (CTQ2013-4113-R) for the funding received to develop this work. Technical and Human support provided by Macrobehavior-Mesostructure-Nanotechnology and NMR SGiker service of UPV/EHU is also gratefully acknowledged.Elsevier202520252016info:eu-repo/semantics/articleinfo:eu-repo/semantics/preprintapplication/pdfhttp://hdl.handle.net/10810/72129reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoIngléshttps://doi.org/10.1016/j.porgcoat.2016.06.011info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/3.0/es/© 2016 Elsevier under CC BY-NC-ND licenseoai:addi.ehu.eus:10810/721292026-06-18T09:23:17Z
dc.title.none.fl_str_mv Coumarin based light responsive healable waterborne polyurethanes
title Coumarin based light responsive healable waterborne polyurethanes
spellingShingle Coumarin based light responsive healable waterborne polyurethanes
Aguirresarobe Hernández, Robert
Coumarin
waterborne polyurethanes
sunlight
light responsive
healing
title_short Coumarin based light responsive healable waterborne polyurethanes
title_full Coumarin based light responsive healable waterborne polyurethanes
title_fullStr Coumarin based light responsive healable waterborne polyurethanes
title_full_unstemmed Coumarin based light responsive healable waterborne polyurethanes
title_sort Coumarin based light responsive healable waterborne polyurethanes
dc.creator.none.fl_str_mv Aguirresarobe Hernández, Robert
Martin, Loli
Aramburu Ocáriz, Nora
Irusta Maritxalar, María Lourdes
Fernández Berridi, María José
author Aguirresarobe Hernández, Robert
author_facet Aguirresarobe Hernández, Robert
Martin, Loli
Aramburu Ocáriz, Nora
Irusta Maritxalar, María Lourdes
Fernández Berridi, María José
author_role author
author2 Martin, Loli
Aramburu Ocáriz, Nora
Irusta Maritxalar, María Lourdes
Fernández Berridi, María José
author2_role author
author
author
author
dc.subject.none.fl_str_mv Coumarin
waterborne polyurethanes
sunlight
light responsive
healing
topic Coumarin
waterborne polyurethanes
sunlight
light responsive
healing
description Waterborne polyurethanes containing coumarin as chain extenders were successfully synthesized. Taking advantage of the photoinduced [2+2] cycloaddition reaction of coumarin moieties, this work evaluated the healing abilities of these materials. The photochemical process was analyzed by UV spectroscopy and the cycloaddition reaction kinetics was studied. In addition, the healing abilities of the synthesized waterborne polyurethanes were determined by means of scratch refilling studies and strain-stress tests. The irradiation conditions as well as the polymeric chain mobility on the fracture and the capacity to generate polymer networks by coumarin linkages were demonstrated to be the main factors affecting the healing process. The behavior of these systems was also determined under the direct irradiation of sunlight.
publishDate 2016
dc.date.none.fl_str_mv 2016
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/preprint
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/72129
url http://hdl.handle.net/10810/72129
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1016/j.porgcoat.2016.06.011
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
© 2016 Elsevier under CC BY-NC-ND license
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/3.0/es/
© 2016 Elsevier under CC BY-NC-ND license
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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