Recyclable Epoxy Resin via Simultaneous Dual Permanent/Reversible Crosslinking Based on Diels-Alder Chemistry
dc.contributor.author | Puyadena Jauregi, Maddalen | |
dc.contributor.author | Calafel Martínez, Miren Itxaso ![]() | |
dc.contributor.author | González de San Román, Estibaliz ![]() | |
dc.contributor.author | Martín Alberdi, María Dolores | |
dc.contributor.author | González Vives, Alba | |
dc.contributor.author | Irusta Maritxalar, María Lourdes | |
dc.date.accessioned | 2021-10-07T08:32:37Z | |
dc.date.available | 2021-10-07T08:32:37Z | |
dc.date.issued | 2021-09 | |
dc.identifier.citation | Macromolecular Chemistry and Physics 222(17) : (2021) // Article ID 2100146 | es_ES |
dc.identifier.issn | 1022-1352 | |
dc.identifier.issn | 1521-3935 | |
dc.identifier.uri | http://hdl.handle.net/10810/53270 | |
dc.description.abstract | Taking advantage of the reversible Diels-Alder (DA) reaction, a simple strategy to obtain recyclable epoxy resins is presented. For this purpose, blends of furan-functionalized and nonfunctionalized epoxy resin are prepared. After the addition of diamine and bismaleimide, blends are heated at 150 degrees C for 5 min, where the permanent amine/epoxy reaction has taken place and upon cooling to room temperature the reversible DA reaction has happened, giving rise to a dual permanent/nonpermanent network. Both reactions are confirmed by Fourier-transform infrared (FTIR) and C-13-crosspolarization, magic-angle spinning (CP/MAS) nuclear magnetic resonance (NMR). Modulated differential scanning calorimetry (MDSC) shows that the epoxy/amine and bismaleimide/amine curing reaction take place, after the DA reaction, simultaneously with the retroDA reaction and before the bismaleimide homopolymerization. Therefore, under the appropriate curing conditions, the Michael's addition and the bismaleimide homopolymerization do not avoid the formation of a hybrid network, as stated in other reports. The reversibility of the DA reaction in three consecutive cycles is confirmed by DSC. Finally, the dual-cured sample is reprocessed three times without significant loss of mechanical properties. | es_ES |
dc.description.sponsorship | The authors thank the Basque Government (IT1313-19), the University of the Basque Country (GIU19/077), and Mineco (MAT2017-84116-R), for the funding received to develop this work. Technical and human support provided by Macro-Behaviour-Mesostructure and Nanotechnology and NMR SGIker services of UPV/EHU are also gratefully acknowledged. The authors also thank Anne Bravo for the design of the table of contents. Document | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Wiley | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/MAT2017-84116-R | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.subject | diels-alder | es_ES |
dc.subject | epoxy resin | es_ES |
dc.subject | modulated DSC | es_ES |
dc.subject | reversible crosslinking | es_ES |
dc.subject | polymer networks | es_ES |
dc.subject | temperature | es_ES |
dc.subject | kinetics | es_ES |
dc.title | Recyclable Epoxy Resin via Simultaneous Dual Permanent/Reversible Crosslinking Based on Diels-Alder Chemistry | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | 2021 The Authors. Macromolecular Chemistry and Physics published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. | es_ES |
dc.rights.holder | Atribución-NoComercial-SinDerivadas 3.0 España | * |
dc.relation.publisherversion | https://onlinelibrary.wiley.com/doi/10.1002/macp.202100146 | es_ES |
dc.identifier.doi | 10.1002/macp.202100146 | |
dc.departamentoes | Polímeros y Materiales Avanzados: Física, Química y Tecnología | es_ES |
dc.departamentoeu | Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia | es_ES |
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by Wiley-VCH GmbH. This is an open access article under the terms of
the Creative Commons Attribution-NonCommercial-NoDerivs License,
which permits use and distribution in any medium, provided the original
work is properly cited, the use is non-commercial and no modifications
or adaptations are made.