Optical and electronic properties of fluorene-based copolymers and their sensory applications

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dc.citation.epage823en_US
dc.citation.issueNumber4en_US
dc.citation.spage815en_US
dc.citation.volumeNumber51en_US
dc.contributor.authorIbrahimova, V.en_US
dc.contributor.authorKocak, M. E.en_US
dc.contributor.authorÖnal, A. M.en_US
dc.contributor.authorTuncel, D.en_US
dc.date.accessioned2016-02-08T09:40:40Z
dc.date.available2016-02-08T09:40:40Z
dc.date.issued2013en_US
dc.departmentDepartment of Chemistryen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractA series of novel, fluorene-based conjugated copolymers, poly[(9,9-bis{propenyl}-9H-fluorene)-co-(9,9-dihexyl9H-fluorene)] (P1), poly[(9,9-bis{carboxymethylsulfonyl-propyl}- fluorenyl-2,7-diyl)-co-(9,9-dihexyl-9H-fluorene)] (P2) and poly[(9,9- dihexylfluorene)-co-alt-(9,9-bis-(6-azidohexyl)fluorene)] (P3), are synthesized by Suzuki coupling reactions and their electrochemical properties, in the form of films, are investigated using cyclic voltammetry. The results reveal that the polymer films exhibit electrochromic properties with a pseudo-reversible redox behavior; transparent in the neutral state and dark violet in the oxidized state. Among the three polymers, P2 possesses the shortest response time and the highest coloration efficiency value. These polymers emit blue light with a band gap value of around 2.9 eV and have high fluorescent quantum yields. Their metal ion sensory abilities are also investigated by titrating them with a number of different transition metal ions; all of these polymers exhibit a higher selectivity toward Fe3þ ions than the other ions tested with Stern–Volmer constants of 4.41 106 M1 , 3.28 107 M1 , 1.25 106 M1 , and 6.56 106 M1 for P1, P2, water soluble version of P2 (P2S) and P3, respectively.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T09:40:40Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2013en
dc.identifier.doi10.1002/pola.26454en_US
dc.identifier.eissn1099-0518
dc.identifier.issn0887-624X
dc.identifier.urihttp://hdl.handle.net/11693/21073
dc.language.isoEnglishen_US
dc.publisherJohn Wiley & Sons, Inc.en_US
dc.relation.isversionofhttp://dx.doi.org/10.1002/pola.26454en_US
dc.source.titleJournal of Polymer Science, Part A: Polymer Chemistryen_US
dc.subjectElectrochromismen_US
dc.subjectFluorene-based polymersen_US
dc.subjectFluorescenceen_US
dc.subjectIon sensingen_US
dc.titleOptical and electronic properties of fluorene-based copolymers and their sensory applicationsen_US
dc.typeArticleen_US

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