Donor-acceptor conjugated polymers based on p- and o-benzodifuranone and thiophene derivatives : electrochemical preparation and optical and electronic properties
Zhang, Kai and Tieke, Bernd and Forgie, John C. and Vilela, Filipe and Skabara, Peter J. (2012) Donor-acceptor conjugated polymers based on p- and o-benzodifuranone and thiophene derivatives : electrochemical preparation and optical and electronic properties. Macromolecules, 45 (2). pp. 743-750. ISSN 0024-9297 (https://doi.org/10.1021/ma202387t)
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A series of pi-conjugated polymers consisting of bis-EDOT or bis-EDTT units and p- or o-diphenylbenzodifuranones have been prepared electrochemically. The monomers and polymers were investigated using UV/vis absorption spectroscopy and cyclic voltammetry. The monomers were synthesized from 3,4-ethylenedioxythien-2-yl or 3,4-ethylenedithiathien-2-yl trimethylstannane and 3,7-bis(4-bromophenyl)benzo[1,2-b:4,5-b']difuran-2,6-dione or 3,6-bis(4-bromophenyl)benzo[1,2-b:6,5-b']difuran-2,7-dione using Stile coupling. The polymers exhibit broad absorption bands, and strong donor-acceptor characteristics with very small band gaps (in a range from 0.40 to 1.20 eV). Electrochemically grown polymer thin films exhibit reversible behavior under oxidative and reductive conditions. Under reduction, the polymer films show color changes from dark to almost transparent.
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Item type: Article ID code: 39956 Dates: DateEvent24 January 2012PublishedSubjects: Science > Chemistry Department: Faculty of Science > Pure and Applied Chemistry Depositing user: Pure Administrator Date deposited: 07 Jun 2012 10:40 Last modified: 02 Jun 2024 07:21 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/39956