Reversible imine crosslinking in waterborne self-healing polymer coatings
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/37815 |
Resumo: | Waterborne polymer coatings have the potential to address the environmental concerns associated with solvent based systems. To improve their performance without using volatile organic compounds, we propose a new approach based on reconfigurable covalent crosslinking that provides mechanical resistance and self-healing properties. The new waterborne polymer coatings are based on mixtures of aldehyde- and amine-functionalized polymer nanoparticles (PNPs) that take advantage of the reversibility of imine bonds in the presence of water. Different degrees of functional monomer incorporation (10 % to 40 %) allowed us to balance crosslinking and interdiffusion during film formation, to obtain mechanically robust and solvent resistant films. A clear structure-properties relation was assessed by following the formation of water resulting from amine-aldehyde condensation crosslinking, measured by differential scanning calorimetry. The resulting polymer coatings further show self-healing properties at room temperature, triggered with residual amounts of water and featuring high recovery rates of the mechanical properties. Our mechanically robust waterborne polymer coatings based in imine reversible crosslinking, featuring self-healing in mild conditions, offer excellent prospects for application in smart coating materials. |
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Reversible imine crosslinking in waterborne self-healing polymer coatingsPolymer nanoparticlesWaterborne polymer coatingsSelf-healingDynamic covalent bondsImine bond formationWaterborne polymer coatings have the potential to address the environmental concerns associated with solvent based systems. To improve their performance without using volatile organic compounds, we propose a new approach based on reconfigurable covalent crosslinking that provides mechanical resistance and self-healing properties. The new waterborne polymer coatings are based on mixtures of aldehyde- and amine-functionalized polymer nanoparticles (PNPs) that take advantage of the reversibility of imine bonds in the presence of water. Different degrees of functional monomer incorporation (10 % to 40 %) allowed us to balance crosslinking and interdiffusion during film formation, to obtain mechanically robust and solvent resistant films. A clear structure-properties relation was assessed by following the formation of water resulting from amine-aldehyde condensation crosslinking, measured by differential scanning calorimetry. The resulting polymer coatings further show self-healing properties at room temperature, triggered with residual amounts of water and featuring high recovery rates of the mechanical properties. Our mechanically robust waterborne polymer coatings based in imine reversible crosslinking, featuring self-healing in mild conditions, offer excellent prospects for application in smart coating materials.Elsevier2023-05-19T15:25:45Z2023-07-01T00:00:00Z2023-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/37815eng0300-944010.1016/j.porgcoat.2023.107552Martins, Tiago D.Viciosa, M. TeresaOliveira, Mariana B.Fernandes, AugusteMano, João F.Baleizão, CarlosFarinha, José Paulo S.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T12:13:54Zoai:ria.ua.pt:10773/37815Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:08:24.731672Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Reversible imine crosslinking in waterborne self-healing polymer coatings |
title |
Reversible imine crosslinking in waterborne self-healing polymer coatings |
spellingShingle |
Reversible imine crosslinking in waterborne self-healing polymer coatings Martins, Tiago D. Polymer nanoparticles Waterborne polymer coatings Self-healing Dynamic covalent bonds Imine bond formation |
title_short |
Reversible imine crosslinking in waterborne self-healing polymer coatings |
title_full |
Reversible imine crosslinking in waterborne self-healing polymer coatings |
title_fullStr |
Reversible imine crosslinking in waterborne self-healing polymer coatings |
title_full_unstemmed |
Reversible imine crosslinking in waterborne self-healing polymer coatings |
title_sort |
Reversible imine crosslinking in waterborne self-healing polymer coatings |
author |
Martins, Tiago D. |
author_facet |
Martins, Tiago D. Viciosa, M. Teresa Oliveira, Mariana B. Fernandes, Auguste Mano, João F. Baleizão, Carlos Farinha, José Paulo S. |
author_role |
author |
author2 |
Viciosa, M. Teresa Oliveira, Mariana B. Fernandes, Auguste Mano, João F. Baleizão, Carlos Farinha, José Paulo S. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Martins, Tiago D. Viciosa, M. Teresa Oliveira, Mariana B. Fernandes, Auguste Mano, João F. Baleizão, Carlos Farinha, José Paulo S. |
dc.subject.por.fl_str_mv |
Polymer nanoparticles Waterborne polymer coatings Self-healing Dynamic covalent bonds Imine bond formation |
topic |
Polymer nanoparticles Waterborne polymer coatings Self-healing Dynamic covalent bonds Imine bond formation |
description |
Waterborne polymer coatings have the potential to address the environmental concerns associated with solvent based systems. To improve their performance without using volatile organic compounds, we propose a new approach based on reconfigurable covalent crosslinking that provides mechanical resistance and self-healing properties. The new waterborne polymer coatings are based on mixtures of aldehyde- and amine-functionalized polymer nanoparticles (PNPs) that take advantage of the reversibility of imine bonds in the presence of water. Different degrees of functional monomer incorporation (10 % to 40 %) allowed us to balance crosslinking and interdiffusion during film formation, to obtain mechanically robust and solvent resistant films. A clear structure-properties relation was assessed by following the formation of water resulting from amine-aldehyde condensation crosslinking, measured by differential scanning calorimetry. The resulting polymer coatings further show self-healing properties at room temperature, triggered with residual amounts of water and featuring high recovery rates of the mechanical properties. Our mechanically robust waterborne polymer coatings based in imine reversible crosslinking, featuring self-healing in mild conditions, offer excellent prospects for application in smart coating materials. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-05-19T15:25:45Z 2023-07-01T00:00:00Z 2023-07 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/37815 |
url |
http://hdl.handle.net/10773/37815 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0300-9440 10.1016/j.porgcoat.2023.107552 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799137737006120960 |