Synthesis and characterization of thiophene-capped polytetrahydrofuran conducting copolymers

Date

2005-06-15

Author

Unur, E
Toppare, Levent Kamil
Yagci, Y
Yilmaz, F

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Living polytetrahydrofuran (PTHF) was terminated with sodium thiophenemethonate to yield a polymer with thiophene groups at both ends. Copolymerizations of PTHF with pyrrole and thiophene were achieved in water-p-toluene sulfonic acid (PTSA) and acetonitrile (AN)tetrabutylammonium tetrafluoroborate (TBAFB) solvent-electrolyte couples via constant-potential electrolysis. The electrical conductivities were measured by the four-probe technique. The PTHF/PTh film,, which was deposited on indium tin oxide (ITO) glass in a dichloromethane-TBAFB solvent-electrolyte couple, was found to be anodically coloring copolymers that electrochemically switch between the green oxidized and red reduced states, exhibiting the electrochromic behavior. Spectroelectrochemical analysis was run in the ultraviolet-visible region to reach a better understanding of the band structure of the PTHF/PTh electrochromic copolymer.

Subject Keywords

General Materials Science, Condensed Matter Physics

URI

https://hdl.handle.net/11511/46398

Journal

MATERIALS CHEMISTRY AND PHYSICS

DOI

https://doi.org/10.1016/j.matchemphys.2004.10.051

Collections

Department of Chemistry, Article

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Citation Formats

E. Unur, L. K. Toppare, Y. Yagci, and F. Yilmaz, “Synthesis and characterization of thiophene-capped polytetrahydrofuran conducting copolymers,” MATERIALS CHEMISTRY AND PHYSICS, pp. 261–268, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46398.