Synthesis and characterization of a bifunctional amido-thiophene monomer and its copolymer with thiophene and electrochemical properties

Date

2005-05-01

Author

AK, M
Çırpan, Ali
Yılmaz, Fatih
YAGCI, Y
Toppare, Levent Kamil

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A bifunctional amido-thiophene namely hexamethylene (bis-3-thiophene acetamide) (HMTA) was synthesized by the reaction of 3-thiophene acetic acid with hexamethylene diamine. Copolymerization in the presence of thiophene was achieved electrochemically in tetrabutylammonium tetrafluoroborate/acetonitrile (TBAFB/AN). Spectroelectro-chemical analysis of the resulting copolymer [P(HMTA-co-Th)] reflected electronic transitions at 505 nm, 740 nm and similar to 1000 nm, revealing pi to 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(HMTA-co-Th) and poly(ethylene dioxythiophene) (PEDOT) have been 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 0.0V and + 1.6V), short switching times with reasonable switching stability under atmospheric conditions.

Subject Keywords

Electrochromic devices, Conducting copolymers, Electrochemical polymerization

URI

https://hdl.handle.net/11511/32117

Journal

EUROPEAN POLYMER JOURNAL

DOI

https://doi.org/10.1016/j.eurpolymj.2004.11.031

Collections

Graduate School of Social Sciences, Article

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Citation Formats

M. AK, A. Çırpan, F. Yılmaz, Y. YAGCI, and L. K. Toppare, “Synthesis and characterization of a bifunctional amido-thiophene monomer and its copolymer with thiophene and electrochemical properties,” EUROPEAN POLYMER JOURNAL, pp. 967–973, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32117.