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dc.contributor.authorKonuray, Ali Osman
dc.contributor.authorRuiz, Anna
dc.contributor.authorMorancho Llena, José María
dc.contributor.authorSalla Tarragó, José María
dc.contributor.authorFernández Francos, Xavier
dc.contributor.authorSerra Albet, Àngels
dc.contributor.authorRamis Juan, Xavier
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
dc.date.accessioned2018-01-11T11:06:21Z
dc.date.issued2018-01
dc.identifier.citationKonuray, A., Ruiz, A., Morancho, J., Salla, J., Fernandez-Francos, X., Serra, À., Ramis, X. Sequential dual curing by selective Michael addition and free radical polymerization of acetoacetate-acrylate-methacrylate mixtures. "European polymer journal", Gener 2018, vol. 98, p. 39-46.
dc.identifier.issn0014-3057
dc.identifier.urihttp://hdl.handle.net/2117/112650
dc.description.abstractA new family of poly(keto ester)-poly(methacrylate) thermosets based on off-stoichiometric acetoacetate-acrylate/methacrylate formulations has been prepared and characterized. The first stage of curing is a self-limiting click Michael addition between acetoacetate and acrylate groups at room temperature and the second stage is a methacrylate radical photopolymerization. An analysis of the reaction kinetics confirmed that acetoacetate reacts selectively with acrylates, leaving methacrylates completely unreacted after the first curing stage. It was found that acrylate-rich mixtures achieve complete conversion at the end of both curing stages. In methacrylate-rich formulations the dilution effect of this monomer leads to a slow curing rate and a certain amount of unreacted acrylates in the first curing stage, which react completely after irradiation in the second curing stage. The prepared materials are gelled after acetoacetate/acrylate Michael addition and show a wide range of properties at both curing stages that can be tailored by changing the relative contribution of the Michael and radical vinyl homopolymerization reactions. The latency of the formulations at the beginning of the second stage can be regulated as desired by irradiation.
dc.format.extent8 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria química::Química orgànica
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers
dc.subject.lcshChemical reactions
dc.subject.lcshPolymers
dc.subject.lcshPolymerization
dc.subject.otherAcetoacetate
dc.subject.otherAcrylates
dc.subject.otherFree-radical polymerization
dc.subject.otherMichael addition
dc.subject.otherThermosets
dc.titleSequential dual curing by selective Michael addition and free radical polymerization of acetoacetate-acrylate-methacrylate mixtures
dc.typeArticle
dc.subject.lemacReaccions químiques
dc.subject.lemacPolímers
dc.subject.lemacPolimerització
dc.contributor.groupUniversitat Politècnica de Catalunya. POLTEPO - Polímers Termoestables Epoxídics
dc.identifier.doi10.1016/j.eurpolymj.2017.11.003
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0014305717304391?via%3Dihub
dc.rights.accessRestricted access - publisher's policy
drac.iddocument21623452
dc.description.versionPostprint (author's final draft)
dc.date.lift2020-01
upcommons.citation.authorKonuray, A., Ruiz, A., Morancho, J., Salla, J., Fernandez-Francos, X., Serra, À., Ramis, X.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameEuropean polymer journal
upcommons.citation.volume98
upcommons.citation.startingPage39
upcommons.citation.endingPage46


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Except where otherwise noted, content on this work is licensed under a Creative Commons license: Attribution-NonCommercial-NoDerivs 3.0 Spain