Syntheses and optoelectronic properties of quinoxaline polymers: The effect of donor unit |
| |
| Authors: | Merve Sendur Abidin Balan Derya Baran Levent Toppare |
| |
| Affiliation: | 1. Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey;2. Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands;3. Institute of Materials for Electronics and Energy, Friedrich Alexander University Erlangen‐Nuremberg, Martensstrasse 7, 91058 Erlangen, Germany;4. Department of Biotechnology, Middle East Technical University, 06800 Ankara, Turkey;5. Department of Polymer Science and Technology, Middle East Technical University, 06800 Ankara, Turkey |
| |
| Abstract: | Tuning the bandgap of electrochromic polymers is one of the important research topics in electrochromism. To understand clearly the effect of donor unit in donor–acceptor–donor‐type polymers, 2,3‐bis(4‐tert‐butylphenyl)‐5,8‐di(thiophen‐2‐yl)quinoxaline and 2,3‐bis(4‐tert‐butylphenyl)‐5‐(2,3‐dihydrothieno[3,4‐b][1,4]dioxin‐ 5‐yl)‐8‐(thiophen‐2‐yl)quinoxaline were synthesized and polymerized potentiodynamically. Their electrochemical and spectroelectrochemical studies were performed, and the results were compared with those of poly(2,3‐bis(4‐tert‐butylphenyl)‐5,8‐bis(2,3‐dihydrothieno[3,4‐b][1,4]dioxin‐5‐yl)quinoxaline) (Gunbas et al., Adv Mater 2008, 20, 691–695). A blue shift in the polymer π–π* transitions revealed that the bandgap of such polymers with the same acceptor unit is related to the electron density of donor units. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011 |
| |
| Keywords: | conducting polymers conjugated polymers donor– acceptor theory electrochemistry electrochromism p‐ and n‐doping quinoxaline derivative redox polymers |
|
|
