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dc.contributor.authorFlores, Marjori
dc.contributor.authorFernández Francos, Xavier
dc.contributor.authorFerrando Piera, Francesc
dc.contributor.authorRamis Juan, Xavier
dc.contributor.authorSerra Albet, Àngels
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
dc.date.accessioned2013-06-25T10:40:51Z
dc.date.created2012-10-26
dc.date.issued2012-10-26
dc.identifier.citationFlores, M. [et al.]. Efficient impact resistance improvement of epoxy/anhydride thermosets by adding hyperbranched polyesters partially modified with undecenoyl chains. "Polymer", 26 Octubre 2012, vol. 53, núm. 23, p. 5232-5241.
dc.identifier.issn0032-3861
dc.identifier.urihttp://hdl.handle.net/2117/19655
dc.description.abstractBoltorn H30 hyperbranched polyester has been modified by acylation with 10-undecenoyl chloride to obtain HBPs with different degree of modification. These HBPs have been used as reactive modifiers, in a proportion of 5 and 10%, of DGEBA/MHHPA/BDMA formulations. The materials obtained have been characterized and their mechanical properties evaluated. Depending on the degree of modification of the HBP, homogeneous or phase separated materials were obtained, which influence the properties. When the degree of modification of the HBP was a 76%, a 4-fold increase in impact resistance was achieved without sacrificing thermomechanical characteristics, thermal stability or processability. This has been attributed to the regular microphase separation achieved and to the good interfacial interaction of the microparticles with the epoxy matrix by formation of covalent bonds between the remaining hydroxyl groups at the shell of the HBP and the anhydride as the curing agent.
dc.format.extent10 p.
dc.language.isoeng
dc.publisherElsevier
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::Compostos orgànics
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers
dc.subject.lcshEsters
dc.subject.lcshEpoxy resins
dc.subject.otherEpoxy resins
dc.subject.otherHyperbranched polymers
dc.subject.otherToughness
dc.titleEfficient impact resistance improvement of epoxy/anhydride thermosets by adding hyperbranched polyesters partially modified with undecenoyl chains
dc.typeArticle
dc.subject.lemacResines epoxídiques
dc.contributor.groupUniversitat Politècnica de Catalunya. TERFIQ - Grup de Termodinàmica i Fisico-Química
dc.identifier.doi10.1016/j.polymer.2012.09.031
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac11054432
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
local.citation.authorFlores, M.; Fernández, X.; Ferrando, F.; Ramis, X.; Serra, À.
local.citation.publicationNamePolymer
local.citation.volume53
local.citation.number23
local.citation.startingPage5232
local.citation.endingPage5241


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