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Link SM, Scheuble M, Goll M, et al. Electropolymerized three-dimensional randomly branched EDOT-containing copolymers. Langmuir. 2013;29(49):15463-73doi: 10.1021/la403050c.
Link, S. M., Scheuble, M., Goll, M., Muks, E., Ruff, A., Hoffmann, A., Richter, T. V., Lopez Navarrete, J. T., Ruiz Delgado, M. C., & Ludwigs, S. (2013). Electropolymerized three-dimensional randomly branched EDOT-containing copolymers. Langmuir : the ACS journal of surfaces and colloids, 29(49), 15463-73. https://doi.org/10.1021/la403050c
Link, Steffen M, et al. "Electropolymerized three-dimensional randomly branched EDOT-containing copolymers." Langmuir : the ACS journal of surfaces and colloids vol. 29,49 (2013): 15463-73. doi: https://doi.org/10.1021/la403050c
Link SM, Scheuble M, Goll M, Muks E, Ruff A, Hoffmann A, Richter TV, Lopez Navarrete JT, Ruiz Delgado MC, Ludwigs S. Electropolymerized three-dimensional randomly branched EDOT-containing copolymers. Langmuir. 2013 Dec 10;29(49):15463-73. doi: 10.1021/la403050c. Epub 2013 Nov 22. PMID: 24266499.
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Langmuir. 2013 Dec 10;29(49):15463-73. doi: 10.1021/la403050c. Epub 2013 Nov 22.

Electropolymerized three-dimensional randomly branched EDOT-containing copolymers.

Langmuir : the ACS journal of surfaces and colloids

Steffen M Link, Martin Scheuble, Miriam Goll, Erna Muks, Adrian Ruff, Anke Hoffmann, Thomas V Richter, Juan T Lopez Navarrete, M Carmen Ruiz Delgado, Sabine Ludwigs

Affiliations

  1. Institut für Polymerchemie, Universität Stuttgart , Pfaffenwaldring 55, 70569 Stuttgart, Germany.

PMID: 24266499 DOI: 10.1021/la403050c

Abstract

The potential of 2,2';3,2″-terthiophene (3T) as branching units in 3D copolymers is presented with EDOT as an example comonomer. Branched EDOT/3T polythiophenes were prepared by electropolymerization, and their electrochemical and optical properties are discussed. Two different approaches were employed: (i) the direct electropolymerization of a novel branched thiophene monomer (3TE3) consisting of a 3T core that contains three outer EDOT end groups and (ii) the electrochemical copolymerization of a EDOT/3T mixture in different ratios from [1:1] to [1:10]. Cyclic voltammetric and vis spectrometric experiments show that the EDOT content within the polymer has a strong influence on the electronic properties of the material: with increasing EDOT content, the HOMO-LUMO gap is decreased. To prove copolymer formation of EDOT and 3T, chemically synthesized reference copolymers of EDOT and 3T were prepared by oxidative coupling using FeCl3, and their optical and electronic properties were compared to those of the electrodeposited films. In addition, the copolymer formation is indicated by the comparison of the electrochemical and spectroscopic results with those of the homopolymers P3T and PEDOT.

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