M. Ak, M. Ak, L. Toppare
Aug 2, 2006
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0
Influential Citations
35
Citations
Journal
Macromolecular Chemistry and Physics
Abstract
Summary: A new monomer, 2,4,6-tris(4-(1H-pyrrol-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 π to π* transitions, and polaron and bipolaron 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 (% ΔT) of 25%. Synthesis route for the Tria-Py monomer.