Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/90814
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dc.contributor.authorMatsushita, Alan F Y-
dc.contributor.authorTapia, María José-
dc.contributor.authorPais, Alberto António Caria Canelas-
dc.contributor.authorValente, Artur José Monteiro-
dc.date.accessioned2020-09-08T15:35:49Z-
dc.date.available2020-09-08T15:35:49Z-
dc.date.issued2020-06-09-
dc.identifier.issn2073-4360pt
dc.identifier.urihttp://hdl.handle.net/10316/90814-
dc.description.abstractThe interaction between polyelectrolytes and metal ions is governed by different types of interactions, leading to the formation of different phases, from liquid state to weak gels, through an appropriate choice of metal ion/polyelectrolyte molar ratio. We have found that lanthanide ions, europium(III) and terbium(III), are able to form polymer composites with poly(sodium acrylate). That interaction enhances the luminescent properties of europium(III) and terbium(III), showing that Eu3+/poly(sodium acrylate) (PSA) and Tb3+/PSA composites have a highly intense red and green emission, respectively. The effect of cations with different valences on the luminescent properties of the polymer composites is analyzed. The presence of metal ions tends to quench the composite emission intensity and the quenching process depends on the cation, with copper(II) being by far the most efficient quencher. The interaction mechanism between lanthanoid ions and PSA is also discussed. The composites and their interactions with a wide range of cations and anions are fully characterized through stationary and non-stationary fluorescence, high resolution scanning electronic microscopy and X-ray diffraction.pt
dc.language.isoengpt
dc.publisherMDPIpt
dc.relationUID/QUI/UI0313/2020pt
dc.rightsopenAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt
dc.subjectFluorescence quenchingpt
dc.subjectLanthanoid complexpt
dc.subjectMetal-organic gelpt
dc.subjectPolymer compositept
dc.subjectResponsive gelpt
dc.titleLuminescent Properties of Lanthanoid-Poly(Sodium Acrylate) Composites: Insights on the Interaction Mechanismpt
dc.typearticle-
degois.publication.firstPage1314pt
degois.publication.issue6pt
degois.publication.titlePolymerspt
dc.relation.publisherversionhttps://www.mdpi.com/2073-4360/12/6/1314pt
dc.peerreviewedyespt
dc.identifier.doi10.3390/polym12061314pt
degois.publication.volume12pt
dc.date.embargo2020-06-09*
uc.date.periodoEmbargo0pt
item.grantfulltextopen-
item.languageiso639-1en-
item.fulltextCom Texto completo-
crisitem.author.deptFaculdade de Ciências e Tecnologia, Universidade de Coimbra-
crisitem.author.deptFaculdade de Ciências e Tecnologia, Universidade de Coimbra-
crisitem.author.parentdeptUniversidade de Coimbra-
crisitem.author.parentdeptUniversidade de Coimbra-
crisitem.author.researchunitCoimbra Chemistry Center-
crisitem.author.researchunitCoimbra Chemistry Center-
crisitem.author.parentresearchunitFaculdade de Ciências e Tecnologia, Universidade de Coimbra-
crisitem.author.parentresearchunitFaculdade de Ciências e Tecnologia, Universidade de Coimbra-
crisitem.author.orcid0000-0002-6725-6460-
crisitem.author.orcid0000-0002-4612-7686-
Appears in Collections:I&D CQC - Artigos em Revistas Internacionais
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