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dc.contributor.authorRoyes, Jorge-
dc.contributor.authorNogales, Aurora-
dc.contributor.authorEzquerra, Tiberio A.-
dc.contributor.authorOriol, Luis-
dc.contributor.authorTejedor, Rosa M.-
dc.contributor.authorPiñol, Milagros-
dc.identifierdoi: 10.1016/j.polymer.2018.03.064-
dc.identifierissn: 0032-3861-
dc.identifier.citationPolymer 143: 58-68 (2018)-
dc.description11 pags., 8 figs., 3 tabs. -- Supplementary data related to this article can be found athttps://doi.org/10.1016/j.polymer.2018.03.064.-
dc.description.abstractThe paper presents a series of light responsive block copolymers that have been prepared by sequential polymerization of propargyl methacrylate and methyl methacrylate by atom transfer radical polymerization (ATRP). The pendant alkyne groups of the poly (propargyl methacrylate) block have been subsequently modified with azides from 2,2-bis(hydroxymethyl)propanoic acid decorated with two motifs, either two azobenzenes or one azobenzene and one biphenyl. This general and versatile synthetic approach simplifies the rational inclusion of structural modifications onto these polymers and, thus, establishing structure-properties relationships as a way to tailor the final properties of the material. By polymerizing the poly(propargyl methacrylate) firstly and poly(methyl methacrylate) secondly, block copolymers with low mass fractions, i.e. highly diluted contents, of the photoresponsive block have been achieved where the effect of the polymeric architecture on the induction of chirality using circularly polarized light (CPL) and its temporal stability has been evaluated. The relevance of the liquid crystallinity on the photoinduction of chirality in the block copolymers has also been investigated mainly in relation to thick films of good optical quality.-
dc.description.sponsorshipThis work was supported by the Ministerio de Economía y Competitividad, under the project MAT2014-55205-P, Fondo Europeo de Desarrollo Regional (FEDER) and Gobierno de Aragón.The authors acknowledge the Laboratory of Advanced MicroscopyLaboratory (LMA) of the Universidad de Zaragoza and CEQMA(Consejo Superior de Investigaciones Científicas-Universidad deZaragoza) for the NMR, MS, EA and thermal analysis general facil-ities. The authors thank M. Sztucki for assistance during measure-ments in ID2 at ESRF. The authors additionally acknowledge the use of the Servicio General de Apoyo a la Investigación of the Universidad de Zaragoza-
dc.subjectBlock copolymers-
dc.subjectPhotoinduced chirality-
dc.titleEffect of the polymer architecture on the photoinduction of stable chiral organizations-
dc.description.versionPeer Reviewed-
dc.contributor.funderMinisterio de Economía y Competitividad (España)-
dc.contributor.funderGobierno de Aragón-
dc.contributor.funderUniversidad de Zaragoza-
dc.contributor.funderConsejo Superior de Investigaciones Científicas (España)-
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