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Molecular mobility in comb-like copolymethacrylates with chalcone-containing side-chains

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Molecular mobility in comb-like copolymethacrylates with chalcone-containing side-chains

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dc.contributor.author Nikonorova, Natalia A. es_ES
dc.contributor.author Díaz Calleja, Ricardo es_ES
dc.contributor.author Yakimansky, Alexander V. es_ES
dc.date.accessioned 2017-07-03T11:21:28Z
dc.date.available 2017-07-03T11:21:28Z
dc.date.issued 2011-08
dc.identifier.issn 0959-8103
dc.identifier.uri http://hdl.handle.net/10251/84339
dc.description.abstract [EN] The molecular mobility of comb-like copolymers of amyl methacrylate with N-methacryloyl-(4-amino-4'-bromochalcone) with various concentrations (20, 30, 40, 50 and 60 mol%) of chalcone-containing comonomer was studied using dielectric spectroscopy. It was found that chalcone chromophores participate in two forms of molecular mobility: cooperative motion in the rubbery state (delta-relaxation) and local motion in the glassy state (beta-relaxation). In addition, alpha-, beta(1)- and gamma-processes, being related to cooperative segmental mobility, to local motion of ester groups adjacent to the backbone and to local motion of terminal side-groups, respectively, were evident. The molecular mobility of the beta(1)-, beta-and gamma-processes changed slightly with the concentration of chromophore groups. For the delta- and alpha-processes, the glass transition temperatures, T(delta) and T(g), increased with the molar fraction of chalcone groups, the difference between them remaining nearly constant (ca 55 degrees C). The Td values obtained should be considered as optimal temperatures for the corona-poling of the chromophore-containing polymers for the preparation of second-order nonlinear optical polymer films with non-centrosymmetric arrangement of chromophore groups. (C) 2011 Society of Chemical Industry es_ES
dc.description.sponsorship This research was supported by a grant of the Polytechnic University of Valencia (resolution of UPV from 13.05.08) and a grant of CICYT (MAt2008-06725-C03-03). en_EN
dc.language Inglés es_ES
dc.publisher Wiley es_ES
dc.relation.ispartof Polymer International es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Chromophore group mobility es_ES
dc.subject Comb-like copolymethacrylates es_ES
dc.subject Dielectric relaxation es_ES
dc.subject Glass transition es_ES
dc.subject Nonlinear optical chromophores es_ES
dc.subject Chalcones es_ES
dc.subject Chromophore group es_ES
dc.subject Co-monomer es_ES
dc.subject Comb-like es_ES
dc.subject Cooperative motion es_ES
dc.subject Ester groups es_ES
dc.subject Glassy state es_ES
dc.subject Local motions es_ES
dc.subject Molar fractions es_ES
dc.subject Molecular mobility es_ES
dc.subject Non-centrosymmetric es_ES
dc.subject Nonlinear optical chromophore es_ES
dc.subject Optimal temperature es_ES
dc.subject Rubbery state es_ES
dc.subject Second-order nonlinear optical es_ES
dc.subject Segmental mobility es_ES
dc.subject Side-chains es_ES
dc.subject Film preparation es_ES
dc.subject Glass es_ES
dc.subject Polymer films es_ES
dc.subject Polymers es_ES
dc.subject Chromophores es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Molecular mobility in comb-like copolymethacrylates with chalcone-containing side-chains es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1002/pi.3065
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//MAT2008-06725-C03-03/ES/PROPIEDADES DIELECTRICAS, VISCOELASTICAS Y DE TRANSPORTE DE ELECTROLITOS SOLIDOS Y NANOCOMPUESTOS POLIMERICOS/ es_ES
dc.rights.accessRights Cerrado es_ES
dc.description.bibliographicCitation Nikonorova, NA.; Díaz Calleja, R.; Yakimansky, AV. (2011). Molecular mobility in comb-like copolymethacrylates with chalcone-containing side-chains. Polymer International. 60(8):1215-1221. https://doi.org/10.1002/pi.3065 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1002/pi.3065 es_ES
dc.description.upvformatpinicio 1215 es_ES
dc.description.upvformatpfin 1221 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 60 es_ES
dc.description.issue 8 es_ES
dc.relation.senia 215129 es_ES
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES
dc.contributor.funder Universitat Politècnica de València es_ES


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