Electrochromic properties and electrochromic device application of copolymer of N-(4-(3-thienyl methylene)-oxycarbonylphenyl)maleimide with thiophene

Ak, Metin
Camurlu, Pinar
Yilmaz, Faruk
Cianga, Luminita
Yagci, Yusuf
Toppare, Levent Kamil
A new copolymer of N-(4-(3-thienyl methylene)-oxycarbonylphenyl)maleimide (MBThi) with thiophene [P(MBThi-co-Th)] was synthesized electrochemically in the presence of tetrabutylammonium tetrafluoroborate as the supporting electrolyte, in acetonitrile/borontrifluoride ethylether solvent mixture (80 : 20, v/v). Spectroelectrochemical analysis of the resulting copolymer reflected electronic transitions at 440, 730, and similar to 1000 nm, revealing pi-pi* transition, polaron, and bipolaron band formation, respectively. Switching ability was evaluated by a kinetic study via measuring the transmittance (%T) at the maximum contrast. Dual-type polymer electrochromic devices (ECDs) based on P(MBThi-co-Th) and poly(ethylene dioxythiophene) (PEDOT) were constructed. Spectroelectrochemistry, switching ability, and stability of the devices were investigated by UV-vis spectroscopy and cyclic voltammetry. These devices exhibit low switching voltages (between 0.0 and +2.0 V) and short switching times with reasonable switching stability under atmospheric conditions. (c) 2006 Wiley Periodicals, Inc.


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Citation Formats
M. Ak, P. Camurlu, F. Yilmaz, L. Cianga, Y. Yagci, and L. K. Toppare, “Electrochromic properties and electrochromic device application of copolymer of N-(4-(3-thienyl methylene)-oxycarbonylphenyl)maleimide with thiophene,” JOURNAL OF APPLIED POLYMER SCIENCE, pp. 4500–4505, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/35493.