Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/90920
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dc.contributor.authorRodrigues, Ana Clara B.-
dc.contributor.authorGeisler, Isabell S.-
dc.contributor.authorKlein, Patrick-
dc.contributor.authorPina, João-
dc.contributor.authorNeuhaus, Fabian J. H.-
dc.contributor.authorDreher, Elke-
dc.contributor.authorLehmann, Christian W.-
dc.contributor.authorSCherf, Ullrich-
dc.contributor.authorMelo, J. Sérgio Seixas de-
dc.date.accessioned2020-09-10T15:04:26Z-
dc.date.available2020-09-10T15:04:26Z-
dc.date.issued2020-
dc.identifier.issn2050-7526pt
dc.identifier.issn2050-7534pt
dc.identifier.urihttp://hdl.handle.net/10316/90920-
dc.description.abstractThree new polymers containing tetraphenylethylene and diphenyl-dinaphthylethylene cores and their corresponding monomeric model compounds were synthesized and fully characterized aiming to investigate their photoluminescence efficiency, microporosity and Brunauer–Emmett–Teller-derived surface areas (SBET). Comprehensive photophysical characterization was undertaken in the solid state (powder and thin films), in tetrahydrofuran (THF) solution and in mixtures of “good” and “poor” solvent to induce aggregation (THF:water mixtures). Aggregation induced emission (AIE) was found for the tert-butyl-TPE monomer and polymer and diphenyl-dinaphthylethylene monomer with the increase of the water amount in THF:water mixtures and in the solid state. The tert-butyl substituted TPE derivatives display the highest fluorescence quantum yield (ϕF) values: 0.14 to 0.30 (in powder) and 0.46 to 0.64 in thin films. In contrast, with the diphenyl-dinaphthylethylene (meta and para-phenylene) polymers aggregation caused quenching (ACQ) occurs in THF:water mixtures (ϕF ≤ 0.011) and in the solid state (ϕF ≤ 0.012). The microporosity of the soluble conjugated polymers as potential conjugated polymers of intrinsic microporosity (cPIMs) was further investigated. The SBET of the polymers were related to their optical properties. The polymers show an attractive combination of high SBET surface area (417 m2 g−1) and the occurrence of distinct AIE effects for the tert-butyl-TPE polymer while the diphenyl-dinaphthylethylene polymers do not exhibit microporosity (SBET ≤ 17 m2 g−1) and show ACQ behavior.pt
dc.language.isoengpt
dc.publisherRoyal Society of Chemistrypt
dc.relationPEst- OE/QUI/UI0313/2014pt
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/284464/EU/The Integrated Initiative of European Laser Research Infrastructures IIIpt
dc.rightsopenAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt
dc.titleDesigning highly fluorescent, arylated poly(phenylene vinylene)s of intrinsic microporositypt
dc.typearticle-
degois.publication.issue7pt
degois.publication.titleJournal of Materials Chemistry Cpt
dc.relation.publisherversionhttps://pubs.rsc.org/en/content/articlelanding/2020/TC/C9TC06028F#!divAbstractpt
dc.peerreviewedyespt
dc.identifier.doi10.1039/C9TC06028Fpt
degois.publication.volume8pt
dc.date.embargo2020-01-01*
uc.date.periodoEmbargo0pt
item.fulltextCom Texto completo-
item.languageiso639-1en-
item.grantfulltextopen-
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.orcid0000-0002-5128-0204-
crisitem.author.orcid0000-0003-1848-1167-
Appears in Collections:I&D CQC - Artigos em Revistas Internacionais
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