Synthesis and characterization of thiophene functionalized polystyrene copolymers and their electrochemical properties

Date

2005-12-01

Author

Sahin, E
Camurlu, P
Toppare, Levent Kamil
Mercore, VM
Cianga, I
Yagci, Y

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Thiophene functionalized polystyrene samples (TFPS) were synthesized by atom transfer radical polymerization (ATRP) of styrene, followed by Suzuki coupling with 3-thiophene (Th) boronic acid. Conducting graft polymer of TFPS with thiophene was achieved at 1.5 V in tetrabutylammonium tetrafluoroborate/dichloromethane (TBAFB/DM) by electrochemical methods. Spectroelectrochemical analysis of the resulting copolymers [P(TFPS-co-Th)] reflected electronic transitions at 449, 721 and 880 nm, revealing pi - pi* transition, polaron and bipolaron band formation, respectively. We also successfully established the utilization of dual type complementary colored polymer electrochromic devices using P(TFPS-co-Th)/poly(3,4-ethylenedioxythiophene (PEDOT) in sandwich configuration. The switching ability, stability and optical memory of the electrochromic device were investigated by UV-visible spectrophotometry and cyclic voltammetry. Device switches between brown and blue color with a switching time of 1.3 s were prepared with optical contrast (%Delta T) of 25 (c) 2005 Society of Chemical Industry.

Subject Keywords

Polymers and Plastics

URI

https://hdl.handle.net/11511/38664

Journal

POLYMER INTERNATIONAL

DOI

https://doi.org/10.1002/pi.1887

Collections

Department of Chemistry, Article

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Citation Formats

E. Sahin, P. Camurlu, L. K. Toppare, V. Mercore, I. Cianga, and Y. Yagci, “Synthesis and characterization of thiophene functionalized polystyrene copolymers and their electrochemical properties,” POLYMER INTERNATIONAL, pp. 1599–1605, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38664.