Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/150160
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dc.contributor.authorPrado, Anselmo del-
dc.contributor.authorPintado-Sierra, Mercedes-
dc.contributor.authorJuan-Y-Seva, Marta-
dc.contributor.authorNavarro, Rodrigo-
dc.contributor.authorReinecke, Helmut-
dc.contributor.authorRodríguez-Hernández, Juan-
dc.contributor.authorElvira, Carlos-
dc.contributor.authorFernández-Mayoralas, Alfonso-
dc.contributor.authorGallardo, Alberto-
dc.date.accessioned2017-05-23T10:07:36Z-
dc.date.available2017-05-23T10:07:36Z-
dc.date.issued2017-
dc.identifierdoi: 10.1002/pola.28487-
dc.identifierissn: 0887-624X-
dc.identifiere-issn: 1099-0518-
dc.identifier.citationJournal of Polymer Science, Part A: Polymer Chemistry 55: 1228-1236 (2017)-
dc.identifier.urihttp://hdl.handle.net/10261/150160-
dc.description.abstractProline may work efficiently in water as catalyst of aldol reactions if it is hydrophobically activated. In this work, we have maximized this hydrophobic activation by the preparation of linear alternating copolymers of hydrophobic phenylmaleimide and a vinylpyrrolidone derivative bearing proline. These copolymers were water soluble above pH 5.0 and, unlike the free proline, exhibited efficient catalysis at pH 7.0. Moreover, they catalyzed and presented enantioselectivity in an aggregated form at pH 4.0 (close to the isoelectric point, IEP, of the polymer). This enantioselectivity has been related to the exclusion of water at this IEP. To control the size and stabilize the aggregates, PEG grafted copolymers were prepared by the incorporation of a PEG-macromer (2–10 mol%), which rendered stable nano-aggregates in water at the IEP. At this pH they catalyzed the aldol reaction in a higher rate than the non-grafted polymer, but the enantioselectivity was decreased. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 55, 1228–1236.-
dc.description.sponsorshipThe authors gratefully acknowledge support from the grants ref. MAT-2010-20001, MAT2015-65184-C2-2-R and MAT2013- 42957-R (Ministry of Economy and Competitiveness-MINECO). A. del Prado acknowledges the Ministry of Economy and Competitiveness, Spain, for the FPI grant. R. Navarro gratefully acknowledges funding fromthe Spanish Research Council (CSIC) and European Social Fund (ESF) through the JAE-doc program-
dc.publisherJohn Wiley & Sons-
dc.rightsclosedAccess-
dc.subjectStimuli-sensitive polymers-
dc.subjectFunctionalization of polymers-
dc.subjectCatalysis-
dc.subjectRadical polymerization-
dc.subjectCopolymerization-
dc.titleAqueous micro and nanoreactors based on alternating copolymers of phenylmaleimide and vinylpyrrolidone bearing pendant l-proline stabilized with PEG grafted chains-
dc.typeartículo-
dc.identifier.doi10.1002/pola.28487-
dc.relation.publisherversionhttp://dx.doi.org/10.1002/pola.28487-
dc.date.updated2017-05-23T10:07:37Z-
dc.description.versionPeer Reviewed-
dc.language.rfc3066eng-
dc.contributor.funderMinisterio de Economía, Industria y Competitividad (España)-
dc.contributor.funderEuropean Commission-
dc.relation.csic-
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100010198es_ES
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.fulltextNo Fulltext-
item.openairetypeartículo-
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