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A soluble conducting polymer of 2,5-di(thiophen-2-yl)-1-p-tolyl-1H-pyrrole and its electrochromic device
Date
2007-02-26
Author
YİGİTSOY, Basak
VARİS, Serhat
Tanyeli, Cihangir
Akhmedov, Idris M.
Toppare, Levent Kamil
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A monomer 2,5-di(thiophen-2-yl)-1-p-tolyl-1H-pyrrole was synthesized via reaction of 1,4-di(2-thienyl)-1,4-butanedione and p-toluidine in the presence of catalytical amount of p-toluenesulfonic acid. Chemical polymerization of the monomer yielded a soluble polymer. The average molecular weight was determined by gel permeation chromatography as number average molecular weight (Mn) 2.5 x 10(3) g/mol. The monomer was also electrochemically polymerized in the presence of LiClO4, NaClO4 (1:1) as the supporting electrolyte in acetonitrile. Cyclic Voltammetry, Fourier Transform Infra Red, Nuclear Magnetic Resonance, Scanning Electron Microscopy and Ultraviolet-Visible Spectroscopy were employed for the characterization of the polymer. Spectroelectrochemistry analysis of homopolymer revealed an electronic transition at 428 nm which corresponds to pi-pi* transition. Switching ability of the homopolymer was evaluated by kinetic studies upon measuring the percent transmittance (%T) at the maximum contrast point, indicating that poly(2,5-di(thiophen-2-yl)-l-p-tolyl-IH-pyrrole) is a suitable material for electrochromic devices.
Subject Keywords
Materials Chemistry
,
Electronic, Optical and Magnetic Materials
,
Surfaces, Coatings and Films
,
Surfaces and Interfaces
,
Metals and Alloys
URI
https://hdl.handle.net/11511/41259
Journal
THIN SOLID FILMS
DOI
https://doi.org/10.1016/j.tsf.2006.10.117
Collections
Department of Chemistry, Article
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BibTeX
B. YİGİTSOY, S. VARİS, C. Tanyeli, I. M. Akhmedov, and L. K. Toppare, “A soluble conducting polymer of 2,5-di(thiophen-2-yl)-1-p-tolyl-1H-pyrrole and its electrochromic device,”
THIN SOLID FILMS
, vol. 515, pp. 3898–3904, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41259.