dc.contributor.author | Nevejans, Sil | |
dc.contributor.author | Ballard, Nicholas | |
dc.contributor.author | Fernández San Martín, Mercedes | |
dc.contributor.author | Reck, Bernd | |
dc.contributor.author | Asua González, José María | |
dc.date.accessioned | 2019-02-05T19:23:38Z | |
dc.date.available | 2019-02-05T19:23:38Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Polymer | es_ES |
dc.identifier.issn | 0032-3861 | |
dc.identifier.uri | http://hdl.handle.net/10810/31384 | |
dc.description.abstract | Implementation of the self-healing concept in coatings is challenging because they have to combine mechanical strength and chain mobility. This challenge is addressed in this work by studying the effect of the polymer microstructure on the mechanical properties and self-healing ability of waterborne poly(urethane-urea) coatings containing aromatic disulfide dynamic bonds. The structural modifications studied are the concentration and flexibility of the aromatic disulfide units and the effect of cross-linking. The effects and limits of these structural changes on the mechanical properties of the polymers and their healability were determined via a combination of DMA measurements, tensile tests, and rheological and scratch closure experiments. It was found that the flexibility of the disulfide unit was key to develop more efficient self-healing materials which offer the necessary molecular mobility for self-healing while simultaneously maintaining a level of mechanical strength that are essential for coating applications. | es_ES |
dc.description.sponsorship | The European Union’s Horizon 2020 research and innovation programme is accredited for the financial support through Project TRACKWAY-ITN 642514 under the Marie Sklodowska-Curie grant agreement. N.B. acknowledges the financial support obtained through the Post-Doctoral fellowship Juan de la Cierva - Incorporación (IJCI-2016-28442), from the Ministry of Economy and Competitiveness of Spain | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation | eu-repo/grantAgreement/EC/H2020/642514 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.subject | coatings | es_ES |
dc.subject | poly(urethane-urea) | es_ES |
dc.subject | self-healing | es_ES |
dc.title | Flexible aromatic disulfide monomers for high-performance self-healable linear and cross-linked poly(urethane-urea) coatings | es_ES |
dc.type | info:eu-repo/semantics/preprint | es_ES |
dc.rights.holder | (c) 2019 Elsevier | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/j.polymer.2019.02.001 | es_ES |
dc.identifier.doi | 10.1016/j.polymer.2019.02.001 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Química aplicada | es_ES |
dc.departamentoeu | Kimika aplikatua | es_ES |