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Issue 1, 2015
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Conducting polyfurans by electropolymerization of oligofurans

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Abstract

Polyfurans have never been established as useful conjugated polymers, as previously they were considered to be inherently unstable and poorly conductive. Here, we show the preparation of stable and conducting polyfuran films by electropolymerization of a series of oligofurans of different chain lengths substituted with alkyl groups. The polyfuran films show good conductivity in the order of 1 S cm−1, good environmental and electrochemical stabilities, very smooth morphologies (roughness 1–5 nm), long effective conjugation lengths, well-defined spectroelectrochemistry and electro-optical switching (in the Vis-NIR region), and have optical band-gaps in the range of 2.2–2.3 eV. A low oxidation potential needed for polymerization of oligofurans (compared to furan) is a key factor in achievement of improved properties of polyfurans reported in this work. DFT calculations and experiments show that polyfurans are much more rigid than polythiophenes, and alkyl substitution does not disturb backbone planarity and conjugation. The obtained properties of polyfuran films are similar or superior to the properties of electrochemically prepared poly(oligothiophene)s under similar conditions.

Graphical abstract: Conducting polyfurans by electropolymerization of oligofurans

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Publication details

The article was received on 31 Aug 2014, accepted on 03 Oct 2014 and first published on 17 Oct 2014


Article type: Edge Article
DOI: 10.1039/C4SC02664K
Citation: Chem. Sci., 2015,6, 360-371
  • Open access: Creative Commons BY license
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    Conducting polyfurans by electropolymerization of oligofurans

    D. Sheberla, S. Patra, Y. H. Wijsboom, S. Sharma, Y. Sheynin, A. Haj-Yahia, A. H. Barak, O. Gidron and M. Bendikov, Chem. Sci., 2015, 6, 360
    DOI: 10.1039/C4SC02664K

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