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dc.contributor.authorFlores Guillen, Marjorie
dc.contributor.authorTomuta, Adrian Marius
dc.contributor.authorFernández Francos, Xavier
dc.contributor.authorSangermano, Marco
dc.contributor.authorSerra Albet, Àngels
dc.contributor.authorRamis Juan, Xavier
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
dc.identifier.citationFlores, Marjorie [et al.]. A new two-stage curing system: Thiol-ene/epoxy homopolymerization using an allyl terminated hyperbranched polyester as reactive modifier. "Polymer", 04 Octubre 2013, vol. 54, núm. 21, p. 5473-5481.
dc.description.abstractAn allyl terminated hyperbranched polyester (HBP) was added to an epoxy formulation containing a trithiol compound to perform a thiol-ene click reaction. By this procedure a flexible thioether network was formed. The photoirradiation of the reactive mixture, which contained a cationic photoinitiator, converted the thioether network in a multifunctional thermal macroinitiator, capable to initiate the cure of the cycloaliphatic epoxy resin(CE) in a second thermal stage. Depending on the proportion of HBP, thermal or photocuring of the epoxy resin took place in different extent, leading to networks with different structures. The photocuring procedure was followed by FTIR and the thermal second stage by DSC. The materials obtained were characterized by DMTA, TGA and SEM. The addition of HBP-Allyl and the trithiol to the formulation allowed increasing the Tg on comparison with the neat epoxy thermoset. The system proposed constitutes a new two-stage dual photo-thermal curing procedure for cycloaliphatic epoxy resins with a thermal latent character.
dc.format.extent9 p.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers
dc.subject.lcshEpoxy resins
dc.titleA new two-stage curing system: Thiol-ene/epoxy homopolymerization using an allyl terminated hyperbranched polyester as reactive modifier
dc.subject.lemacResines epoxídiques
dc.contributor.groupUniversitat Politècnica de Catalunya. TERFIQ - Grup de Termodinàmica i Fisico-Química
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorFlores, Marjorie; Tomuta, A.; Fernández, X.; Sangermano, M.; Serra, À.; Ramis, X.

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