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Efficient impact resistance improvement of epoxy/anhydride thermosets by adding hyperbranched polyesters partially modified with undecenoyl chains
dc.contributor.author | Flores Guillen, Marjorie |
dc.contributor.author | Fernández Francos, Xavier |
dc.contributor.author | Ferrando Piera, Francesc |
dc.contributor.author | Ramis Juan, Xavier |
dc.contributor.author | Serra Albet, Maria Àngels |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics |
dc.date.accessioned | 2013-06-25T10:40:51Z |
dc.date.created | 2012-10-26 |
dc.date.issued | 2012-10-26 |
dc.identifier.citation | Flores, 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.issn | 0032-3861 |
dc.identifier.uri | http://hdl.handle.net/2117/19655 |
dc.description.abstract | Boltorn 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.extent | 10 p. |
dc.language.iso | eng |
dc.publisher | Elsevier |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria química::Química orgànica::Compostos orgànics |
dc.subject | Àrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers |
dc.subject.lcsh | Esters |
dc.subject.lcsh | Epoxy resins |
dc.subject.other | Epoxy resins |
dc.subject.other | Hyperbranched polymers |
dc.subject.other | Toughness |
dc.title | Efficient impact resistance improvement of epoxy/anhydride thermosets by adding hyperbranched polyesters partially modified with undecenoyl chains |
dc.type | Article |
dc.subject.lemac | Resines epoxídiques |
dc.contributor.group | Universitat Politècnica de Catalunya. TERFIQ - Grup de Termodinàmica i Fisico-Química |
dc.identifier.doi | 10.1016/j.polymer.2012.09.031 |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 11054432 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Flores, M.; Fernández, X.; Ferrando, F.; Ramis, X.; Serra, À. |
local.citation.publicationName | Polymer |
local.citation.volume | 53 |
local.citation.number | 23 |
local.citation.startingPage | 5232 |
local.citation.endingPage | 5241 |
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