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Electrochemical Polymerization of 4,4-Dimethyl-2,2’-Bithiophene in Concentrated Polymer Liquid Crystal Solution
Faculty of Pure and Applied Sciences, Division of Materials Science, University of Tsukuba, Tsukuba, Japan
Faculty of Pure and Applied Sciences, Division of Materials Science, University of Tsukuba, Tsukuba, Japan
Faculty of Pure and Applied Sciences, Division of Materials Science, University of Tsukuba, Tsukuba, Japan
- 1 Faculty of Pure and Applied Sciences, Division of Materials Science, University of Tsukuba, Tsukuba, Japan
- 2 Faculty of Pure and Applied Sciences, Division of Materials Science, University of Tsukuba, Tsukuba, Japan
- 3 Faculty of Pure and Applied Sciences, Division of Materials Science, University of Tsukuba, Tsukuba, Japan
Journal of Materials Science and Chemical Engineering·Volume 05 (2017)·Pages 64–70·Published 8 February 2017·DOI10.4236/msce.2017.52007
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Abstract
Electrochemical polymerization of 4,4’-dimethyl-2,2’-bithiophene (4DMBT) was carried out in a concentrated solution of hydroxypropyl cellulose (HPC) liquid crystal in N,N -dimethylformamide. Infrared absorption spectra suggested that the resultant polymer film contains HPC. This study demonstrates an electrochemical preparation of a polymer composite having liquid crystal order. We proposed a helical stacking composite model.
KeywordsConjugated PolymerElectrochemical PolymerizationPolymer Liquid CrystalHydroxypropyl Cellulose
- Cunningham, D.D., Laguren-Davidson, L., Mark, H.B., Van Pham, C. and Zimmer, H. (1987) Synthesis of Oligomeric 2,5-Thienylenes: Their UV Spectra and Oxidation Potentials. Journal of the Chemical Society, Chemical Communications, 13, 1021-1023. https://doi.org/10.1039/c39870001021
- Krische, B., Hellberg, J. and Lilja, C. (1987) Conducting Polymers from Dimethyl-2, 2’-Bithiophenes. Journal of the Chemical Society, Chemical Communications, 19, 1476-1478. https://doi.org/10.1039/C39870001476
- Laguren-Davidson, L., Van Pham, C., Zimmer, H., Mark, H.B. and Ondrus, D.J. (1988) Steric Effects on the Controlled Potential Electro-Oxidation of 3-Methyl-thiophene and Thiophene Oligomers and the Properties of their Polymer Films. Journal of the Electrochemical Society, 135, 1406-1414. https://doi.org/10.1149/1.2096007
- Batina, N., Gui, J.Y., Kahn, B.E., Lin, C.H., Lu, F., McCargar, J.W. and Hubbard, A.T. (1989) Studies of Thiophene and Substituted Thiophenes at Platinum(111) Electrodes by Vibrational Spectroscopy and Auger Spectroscopy: Monomers, Dimers, and Polymers. Langmuir, 5, 588-600. https://doi.org/10.1021/la00087a009
- Van Pham, C., Burkhardt, A., Shabana, R., Cunningham, D.D., Mark Jr., H.B. and Zimmer, H. (1989) A Convenient Synthesis of 2,5-Thienylene Oligomer: Some of Their Spectroscopic and Electrochemical Properties. Phosphorus, Sulfur, and Silicon and the Related Elements, 46, 153-168. https://doi.org/10.1080/10426508909412061
- Barbarella, G., Zambianchi, M. and Bongini, A. (1991) Conformation and Optical Absorption Properties of Thiophene Oligomers: 13C-NMR, UV, and MMP2 Calculations of Di-and Tetramethyl-Quaterthiophenes. Advanced Materials, 3, 494-496. https://doi.org/10.1002/adma.19910031008
- Barbarella, G., Bongini, A. and Zambianchi, M. (1992) Synthesis 13C NMR, λ Max and MMP2 Calculations of Two “Tailor-Made” α-Conjugated Hexamethylsexithiophenes. Tetrahedron, 48, 6701-6708. https://doi.org/10.1016/S0040-4020(01)80015-6
- Mastragostino, M., Arbizzani, C., Ferloni, P. and Marinangeli, A. (1992) Polymer-Based Electrochromic Devices. Solid State Ionics, 53, 471-478. https://doi.org/10.1016/0167-2738(92)90417-N
- Arbizzani, C., Barbarella, G., Bongini, A., Mastragostino, M. and Zambianchi, M. (1992) Electrochemical and Optical Properties of Poly (3-Methylthiophenes) Electrosynthesized by 3,3’-, 3,4’-and 4,4’-Dimethyl-2,2’-Bithiophenes. Synthetic Metals, 52, 329-339. https://doi.org/10.1016/0379-6779(92)90032-E
- Distefano, G., Dal Colle, M., Jones, D., Zambianchi, M., Favaretto, L. and Modelli, A. (1993) Electronic and Geometric Structure of Methylthiophenes and Selected Dimethyl-2,2’-Bithiophenes. Journal of Physical Chemistry, 97, 3504-3509. https://doi.org/10.1021/j100116a011