Synthesis of 1,2,3-triazole functionalized hyperbranched poly(ethyleneimine) and its use as multifunctional anionic macroinitiator for diglycidyl ether of bisphenol A curing

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dc.contributor	Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
dc.contributor	Universitat Politècnica de Catalunya. POLTEPO - Polímers Termoestables Epoxídics
dc.contributor.author	Acebo Gorostiza, Cristina
dc.contributor.author	Lederer, Albena
dc.contributor.author	Appelhans, Dietmar
dc.contributor.author	Ramis Juan, Xavier
dc.contributor.author	Serra Albet, Àngels
dc.date	2016-12-01
dc.identifier.citation	Acebo, C., Lederer, A., Appelhans, D., Ramis, X., Serra, À. Synthesis of 1,2,3-triazole functionalized hyperbranched poly(ethyleneimine) and its use as multifunctional anionic macroinitiator for diglycidyl ether of bisphenol A curing. "European polymer journal", 1 Desembre 2016, vol. 85, p. 390-400.
dc.identifier.citation	0014-3057
dc.identifier.citation	10.1016/j.eurpolymj.2016.10.043
dc.identifier.uri	http://hdl.handle.net/2117/98616
dc.language.iso	eng
dc.relation	http://www.sciencedirect.com/science/article/pii/S0014305716301392
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers
dc.subject	Àrees temàtiques de la UPC::Enginyeria química::Química orgànica::Compostos orgànics
dc.subject	Dendrimers
dc.subject	Epoxy resins
dc.subject	Polymers
dc.subject	Epoxy resins
dc.subject	Hyperbranched polymer
dc.subject	Anionic homopolymerization
dc.subject	Click reaction
dc.subject	Azide-yne
dc.subject	Dendrímers
dc.subject	Resines epoxídiques
dc.subject	Polímers
dc.title	Synthesis of 1,2,3-triazole functionalized hyperbranched poly(ethyleneimine) and its use as multifunctional anionic macroinitiator for diglycidyl ether of bisphenol A curing
dc.type	info:eu-repo/semantics/submittedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	Hyperbranched poly(ethyleneimine) (PEI) has been modified by the addition of propargyl acrylate following a Michael addition reaction. On this polymer (PEI-yne) a copper (I)-catalyzed azide alkyne cycloaddition (CuAAC) has been performed to obtain a multifunctional triazole initiator (PEI-TA). After structural and thermal characterization, this polymer has been used in different proportions as anionic multifunctional macroinitiator in diglycidyl ether of bisphenol A (DGEBA) homopolymerization. The curing process has been studied by calorimetry and the thermosets obtained have been thermally characterized and compared with thermosets prepared by using 1-methylimidazole (1-MI) as standard initiator. The electron microscopy inspection of the fracture surfaces of the new materials prepared shows the formation of submicrometer particles that should enhance toughness characteristics, changing smooth fracture surfaces in 1-MI initiated materials to multi-planar surface with tortuous and thicker cracks.

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