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dc.contributor.authorBuruaga, Lorea
dc.contributor.authorPomposo Alonso, José Adolfo
dc.date.accessioned2014-02-20T14:03:41Z
dc.date.available2014-02-20T14:03:41Z
dc.date.issued2011-12
dc.identifier.citationPolymers 3(4) : 1673-1683 (2011)es
dc.identifier.issn2073-4360
dc.identifier.urihttp://hdl.handle.net/10810/11585
dc.description.abstract"Click" chemistry has become an efficient avenue to unimolecular polymeric nanoparticles through the self-crosslinking of individual polymer chains containing appropriate functional groups. Herein we report the synthesis of ultra-small (7 nm in size) polymethyl methacrylate (PMMA) nanoparticles (NPs) by the "metal-free" cross-linking of PMMA-precursor chains prepared by reversible addition-fragmentation chain transfer (RAFT) polymerization containing beta-ketoester functional groups. Intramolecular collapse was performed by the one-pot reaction of beta-ketoester moieties with alkyl diamines in tetrahydrofurane at r.t. (i.e., by enamine formation). The collapsing process was followed by size exclusion chromatography and by nuclear magnetic resonance spectroscopy. The size of the resulting PMMA-NPs was determined by dynamic light scattering. Enamine "click" chemistry increases the synthetic toolbox for the efficient synthesis of metal-free, ultra-small polymeric NPs.es
dc.description.sponsorshipFinancial support by Basque Excellence Research Center-Materials Physics Center (BERC-MPC). Authors gratefully acknowledge financial support from the Spanish Ministry of Science and Innovation, project MAT-22007-63681, and Diputacion de Gipuzkoa, project 2011-CIEN-000085-01.es
dc.language.isoenges
dc.publisherMDPIes
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.subjectenamine "click" chemistryes
dc.subjectintramolecular collapsees
dc.subjectunimolecular polymeric nanoparticleses
dc.titleMetal-Free Polymethyl Methacrylate (PMMA) Nanoparticles by Enamine "Click" Chemistry at Room Temperaturees
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.holder© 2011 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).es
dc.relation.publisherversionhttp://www.mdpi.com/2073-4360/3/4/1673es
dc.identifier.doi10.3390/polym3041673
dc.departamentoesFísica de materialeses_ES
dc.departamentoeuMaterialen fisikaes_ES
dc.subject.categoriaCHEMISTRY, MATERIALS


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