Synthesis, characterization and electrochromic properties of conducting copolymers of 3-[(3-thienylcarbonyl)oxy]-2,2-bis{[(3-thienylcarbonyl)oxy]}propyl 3-thiophene carboxylate with thiophene and pyrrole

Date

2004-01-01

Author

Bulut, U
Yilmaz, F
Yagci, Y
Toppare, Levent Kamil

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3-[(3-Thienylcarbonyl)oxy]-2,2-bis{[(3-thienylcarbonyl)oxy]}propyl 3-thiophene carboxylate (TOTPT) was synthesized by the reaction of 3-thionylcarbonyl chloride with pentaerythritol, it was electrochemically polymerized with either thiophene or pyrrole by using tetrabutylammonium tetrafluoroborate (TBAFB) as the supporting electrolyte in acetonitrile (AN). Characterization of the resulting copolymers was carried out by FTIR spectroscopy, cyclic voltammetry, thermal gravimetry analysis (TGA), differential scanning calorimetry (DSC), and scanning electron microscopy (SEM). Electrical conductivities of the copolymers were measured by the four-probe technique. The electrochemically synthesized copolymer was found to be capable of switching between an orange reduced state and a greenish-blue color oxidized state, and has an electronic band gap of 1.95 eV. The copolymer exhibited a long-term switching stability up to 400 double switches.

Subject Keywords

Materials Chemistry, Biochemistry, General Chemistry, General Chemical Engineering, Polymers and Plastics, Environmental Chemistry

URI

https://hdl.handle.net/11511/38251

Journal

REACTIVE & FUNCTIONAL POLYMERS

DOI

https://doi.org/10.1016/j.reactfunctpolym.2004.03.010

Collections

Department of Chemistry, Article

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Synthesis, characterization, and electrochromic properties of conducting copolymers of 2-[(3-thienylcarbonyl)oxy]ethyl 3-thiophene carboxylate with thiophene and pyrrole Bulut, U; Alkan, S; Yilmaz, F; Yagci, Y; Toppare, Levent Kamil (Informa UK Limited, 2004-07-01) 2-[(3-Thienylcarbonyl)oxy]ethyl 3-thiophene carboxylate (TOET) was synthesized via the reaction of 3-thionylcarboxylic acid with ethylene glycol, and electrochemically polymerized with thiophene (Th) and pyrrole (Py) by using tetrabutylannnonium tetrafluoroborate (TBAFB) as the supporting electrolyte in acetonitrile (ACN). Characterization of the resulting copolymers were performed via cyclic voltammetry, FTIR, and scanning electron microscopy (SEM). Electrical conductivities are measured by the four-probe ...
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Citation Formats

U. Bulut, F. Yilmaz, Y. Yagci, and L. K. Toppare, “Synthesis, characterization and electrochromic properties of conducting copolymers of 3-[(3-thienylcarbonyl)oxy]-2,2-bis{[(3-thienylcarbonyl)oxy]}propyl 3-thiophene carboxylate with thiophene and pyrrole,” REACTIVE & FUNCTIONAL POLYMERS, pp. 63–70, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38251.