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New aromatic-aliphatic hyperbranched polyesters with vinylic end groups of different length as modifiers of epoxy/anhydride thermosets
dc.contributor.author | Tomuta, Adrian Marius |
dc.contributor.author | Ferrando Piera, Francesc |
dc.contributor.author | Serra Albet, Maria Àngels |
dc.contributor.author | Ramis Juan, Xavier |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics |
dc.date.accessioned | 2013-06-20T10:26:22Z |
dc.date.created | 2012-09 |
dc.date.issued | 2012-09 |
dc.identifier.citation | Tomuta, A. [et al.]. New aromatic-aliphatic hyperbranched polyesters with vinylic end groups of different length as modifiers of epoxy/anhydride thermosets. "Reactive and functional polymers", Setembre 2012, vol. 72, núm. 9, p. 556-563. |
dc.identifier.issn | 1381-5148 |
dc.identifier.uri | http://hdl.handle.net/2117/19589 |
dc.description.abstract | The synthesis and characterization of two new aromatic–aliphatic hyperbranched polyesters modified with long and short vinylic chains was reported. These hyperbranched polymers were used as toughening modifiers of epoxy/anhydride thermosets. The curing of mixtures of diglycidyl ether of bisphenol A and hexahydro-4-methylphtalic anhydride with different proportions of both hyperbranched polymers using N,N-benzyldimethylamine as catalyst was investigated by differential scanning calorimetry. The kinetic of curing process was established using an isoconversional integral procedure. The characterization of these materials was done by means of several thermal analysis techniques and their morphology was investigated by electron microscopy. The addition of highly branched structures led to homogeneous morphologies and a more toughening fracture of the thermosets in comparison to the neat epoxy/anhydride material. The modified thermosets presented slightly lower glass transition temperature than the unmodified one and the thermal stability barely changed by the addition of the modifiers. |
dc.format.extent | 8 p. |
dc.language.iso | eng |
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::Física::Física de l'estat sòlid |
dc.subject | Àrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers |
dc.subject.lcsh | Polyesters |
dc.subject.lcsh | Solid state physics |
dc.subject.other | Epoxy |
dc.subject.other | Anhydride |
dc.subject.other | Aromatic–aliphatic polyester |
dc.subject.other | Hyperbranched |
dc.subject.other | Toughness |
dc.title | New aromatic-aliphatic hyperbranched polyesters with vinylic end groups of different length as modifiers of epoxy/anhydride thermosets |
dc.type | Article |
dc.subject.lemac | Física de l'estat sòlid |
dc.subject.lemac | Polímers |
dc.contributor.group | Universitat Politècnica de Catalunya. TERFIQ - Grup de Termodinàmica i Fisico-Química |
dc.identifier.doi | 10.1016/j.reactfunctpolym.2012.05.008 |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S1381514812001484 |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 10979944 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Tomuta, A.; Ferrando, F.; Serra, À.; Ramis, X. |
local.citation.publicationName | Reactive and functional polymers |
local.citation.volume | 72 |
local.citation.number | 9 |
local.citation.startingPage | 556 |
local.citation.endingPage | 563 |
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