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Article
Synthesis of Novel Thiophene-Based Oligomers and Polymers with Thienothiadiazole Units
Article first published online: 21 JUL 2008
DOI: 10.1002/masy.200850821
Copyright © 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Issue
Macromolecular Symposia
Special Issue: Advanced Polymer Materials for Photonics and Electronics
Volume 268, Issue 1, pages 100–104, July 2008
Additional Information
How to Cite
Kmínek, I., Cimrová, V., Výprachtický, D. and Pavlačková, P. (2008), Synthesis of Novel Thiophene-Based Oligomers and Polymers with Thienothiadiazole Units. Macromol. Symp., 268: 100–104. doi: 10.1002/masy.200850821
Publication History
- Issue published online: 21 JUL 2008
- Article first published online: 21 JUL 2008
- Abstract
- References
- Cited By
Keywords:
- 4,6-di(2-thienyl)thieno[3,4-c][1,2;
- 5]thiadiazole;
- oligothiophenes;
- thiophene-fluorene copolymer
Abstract
Summary: Novel non-alkylated and alkylated quinquethiophenes were prepared by the Stille coupling reaction of bis(5-bromo-2-thienyl)thieno[3,4-c][1,2, 5]thiadiazole (TBr) with 2-(tributylstannyl)thiophene. These compounds possess long wavelength absorption maxima around 700 nm in solution and 750 nm in thin films. Dibromo compound TBr is further employed as a building block in the syntheses of low-bandgap copolymers with fluorene units. A soluble alternating copolymer was prepared by the Suzuki coupling of TBr with bis(propane-1,3-diyl) 9,9-bis(2-ethylhexyl)fluorene-2,7-diylbisboro-nate. It shows the long-wavelength absorption maximum at 747 nm in solution and at 764 nm in thin film, which indicates extensively conjugated system.