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Electrochemical polymerization of a new low-voltage oxidized thienylenepyrrole-derivative and its electrochromic device application
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Date
2014-09-01
Author
Carbas, Buket Bezgin
KIVRAK, Arif
TEKE, Ecem
Zora, Metin
Önal, Ahmet Muhtar
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Synthesis of a new monomer, 2,5-bis-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-1-phenyl-1H-pyrrole (ENE), from pyrrole, iodobenzene and 3,4-ethylenedioxythiophene (EDOT), and its electropolymerization are reported. ENE was oxidized at a low oxidation potential (0.45 V vs. Ag/AgCl) and successfully electropolymerized in acetonitrile containing 0.1 M NaClO4 and LiClO4 electrolyte mixture. The resulting polymer, P(ENE), revealed five distinctive colors upon doping, which indicated that the polymer is multichromic. P(ENE) has a coloration efficiency of 288 cm(2)/C at 422 nm with a specific optical band gap of 2.0 eV. Furthermore, an electrochromic device (ECD) based on P(ENE) and poly( ethylene dioxythiophene) (PEDOT) was constructed and its switching was investigated by UV-vis spectroscopy. (C) 2014 Published by Elsevier B.V.
Subject Keywords
Analytical Chemistry
,
Electrochemistry
,
General Chemical Engineering
URI
https://hdl.handle.net/11511/48957
Journal
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
DOI
https://doi.org/10.1016/j.jelechem.2014.07.005
Collections
Department of Chemistry, Article