Electrochemical properties of a new star-shaped pyrrole monomer and its electrochromic applications

Date

2006-08-02

Author

Ak, Metin
Ak, Mine Sulak
Toppare, Levent Kamil

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A new monomer, 2,4,6-tris(4-(1H-pyrroI-1-yl) phenoxy)-1,3,5-triazine (Tria-Py) was synthesized via the reaction,of 4-(1H-pyrrol-1-yl)phenol with 2,4,6-trichloro-1,3, 5-triazine. It was electrochemically polymerized in a dichloromethane/acetonitrile solvent mixture. The polymer P(Tria-Py) was characterized via CV, FTIR, SEM and uv-vis spectroscopy. Spectroelectrochemical analysis revealed electronic transitions at 346, 508 and 665, nm, revealing pi to pi* transitions, and polaron and bipolaton band formations respectively, We also made a dual-type, complementary-colored electrochromic device using P(Tria-Py)/poly(3,4-ethylenedioxythiophene) (PEDOT) in a sandwich configuration. The device switches between dark blue and red colors with a switching time of 2.2 s and an optical contrast (% Delta T) of 25%.

Subject Keywords

Physical and Theoretical Chemistry, Organic Chemistry, Materials Chemistry, Polymers and Plastics, Condensed Matter Physics

URI

https://hdl.handle.net/11511/47719

Journal

MACROMOLECULAR CHEMISTRY AND PHYSICS

DOI

https://doi.org/10.1002/macp.200600178

Collections

Department of Chemistry, Article

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Citation Formats

M. Ak, M. S. Ak, and L. K. Toppare, “Electrochemical properties of a new star-shaped pyrrole monomer and its electrochromic applications,” MACROMOLECULAR CHEMISTRY AND PHYSICS, pp. 1351–1358, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47719.