Neutral-State Green Conjugated Polymers from Pyrrole Bis-Substituted Benzothiadiazole and Benzoselenadiazole for Electrochromic Devices

Date

2011-04-15

Author

Baran, Derya
Oktem, Gozde
Celebi, Selin
Toppare, Levent Kamil

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Two donor/acceptor/donor-type pyrrole-incorporated monomers, 4,7-di(1H-pyrrol-2-yl)benzo[c][1,2,5]thiadiazole (M1) and 4,7-di(1H-pyrrol-2-yl) benzo[c][1,2,5] selenadiazole (M2), were synthesized and polymerized electrochemically. The resulting polymers (P1 and P2) were investigated in terms of their electrochromic and optical properties. Spectroelectrochemistry studies revealed that both polymers show two distinct absorptions in both red and blue regions. The absorptions at around 400 and 700 nm correspond to neutral-state green polymers P1 and P2, which is a unique property for conjugated polymers. Optical band gaps were calculated as 1.12 and 1.08 eV for P1 and P2, respectively.

Subject Keywords

Benzoselenadiazole, Benzothiadiazole, Conjugated polymers

URI

https://hdl.handle.net/11511/33375

Journal

MACROMOLECULAR CHEMISTRY AND PHYSICS

DOI

https://doi.org/10.1002/macp.201000744

Collections

Department of Chemistry, Article

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Citation Formats

D. Baran, G. Oktem, S. Celebi, and L. K. Toppare, “Neutral-State Green Conjugated Polymers from Pyrrole Bis-Substituted Benzothiadiazole and Benzoselenadiazole for Electrochromic Devices,” MACROMOLECULAR CHEMISTRY AND PHYSICS, pp. 799–805, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/33375.