Electrochromic Properties of a Copolymer of 1-4-Di[2,5-di(2-thieny1)-1H-1-pyrroly1]benzene with EDOT

Date

2009-04-15

Author

KİRALP, S
ÇAMURLU, PINAR
Günbaş, Emrullah Görkem
Tanyeli, Cihangir
AKHMEDOV, I
Toppare, Levent Kamil

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

141
views

0
downloads

Homopolymer of 1-4-di[2,5-di(2-thienyl)- 1H-1-pyrroly1]benzene and its copolymer with 3,4-ethylenedioxythiophene (EDOT) were electrochemically synthesized and characterized. Resulting homopolymer and copolymer films have distinct electrochromic properties. At the neutral state, homopolymer has lambda(max) due to the pi-pi* transition as 410 nm and E-g was calculated as 2.03 eV. The resultant copolymer revealed multichromism through the entire visible region, displaying red-violet, brownish yellow green, and blue colors with the variation of the applied potential. For the copolymer, lambda(max) and E-g were found to be 450 nm and 1.66 eV, respectively. Double potential step chronoamperometry experiment shows that homopolymer and copolymer films have good stability, fast switching times, and high optical contrast in NIR region as 41 and 30%, respectively. Copolymerization with EDOT not only decreases the band gap, E-g, but also enhances the electrochromic properties. Hence, electrochemical copolymerization is considered to be a powerful tool to improve the electrochromic properties of N-substituted 2,5-di(2-thienylpyrrole) derivatives. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 112: 1082-1087, 2009

Subject Keywords

Electrochemical polymerization, Conducting polymer, Multichromism, Copolymerization, Optical contrast, Electrochromism

URI

https://hdl.handle.net/11511/42155

Journal

JOURNAL OF APPLIED POLYMER SCIENCE

DOI

https://doi.org/10.1002/app.29544

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

A soluble conducting polymer: 1-Phenyl-2,5-di(2-thienyl)-1H-pyrrole and its electrochromic application Tarkuc, S.; Sahmetlioglu, E.; Tanyeli, Cihangir; Akhmedov, I. M.; Toppare, Levent Kamil (2006-07-28) A thiophene-functionalized monomer 1-phenyl-2,5-di(2-thienyl)-1H-pyrrole (PTP) was synthesized. The chemical polymerization of PTP (CPTP) was realized by using FeCl3 as the oxidant. The structures of both the monomer and the soluble polymer (CPTP) were investigated by Nuclear Magnetic Resonance (H-1 and C-13 NMR) and Fourier Transform Infrared (FTIR). The average molecular weight of the chemically synthesized polymer was determined by gel permeation chromatography (GPC) as Mn = 7.2 x 10(3). The electrochemi...
Electrochromic properties of multicolored novel polymer synthesized via combination of benzotriazole and N-functionalized 2,5-di(2-thienyl)-1H-pyrrole units Rende, Eda; Kilic, Cihan E.; Udum, Yasemin Arslan; Toffoli, Daniele; Toppare, Levent Kamil (2014-08-20) Synthesis of new conducting polymers is desired since their electrochemical and optical properties enable them to be used as active layers in many device applications. Benzotriazole and N-functionalized 2,5-di(2-thienyl)-1H-pyrrole (SNS Series) containing polymers showed very promising results as electrochromic materials. In order to observe the effect of the combination of these two units, three new monomers; 2-(6-(2,5-bis(5-methylthiophen-2-yl)-1H-pyrrol-1-yl)hexyl)-4,7-di(thiophen-2-yl)-2H benzo[d][1,2,3...
Electrochromic properties and electrochromic device application of copolymer of N-(4-(3-thienyl methylene)-oxycarbonylphenyl)maleimide with thiophene Ak, Metin; Camurlu, Pinar; Yilmaz, Faruk; Cianga, Luminita; Yagci, Yusuf; Toppare, Levent Kamil (2006-12-05) A new copolymer of N-(4-(3-thienyl methylene)-oxycarbonylphenyl)maleimide (MBThi) with thiophene [P(MBThi-co-Th)] was synthesized electrochemically in the presence of tetrabutylammonium tetrafluoroborate as the supporting electrolyte, in acetonitrile/borontrifluoride ethylether solvent mixture (80 : 20, v/v). Spectroelectrochemical analysis of the resulting copolymer reflected electronic transitions at 440, 730, and similar to 1000 nm, revealing pi-pi* transition, polaron, and bipolaron band formation, resp...
Electrochemical and spectroelectrochemical studies of poly(2,5-di-2,3-dihydrothieno[3,4-b][1,4]dioxin-5-ylthienyl) derivatives bearing azobenzene, coumarine and fluorescein dyes: Effect of chromophore groups on electrochromic properties Yigit, Deniz; Udum, Yasemin Arslan; GÜLLÜ, Mustafa; Toppare, Levent Kamil (2014-11-20) Three novel thiophene based monomers, 2,5-di-2,3-dihydrothieno[3,4-b][1,4]dioxin-5-ylthienyl derivatives, 1-{4-[(2,5-Di-2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl-3-thienyl) methoxy] phenyl}-2-phenyldiazene) (ETEAz), 4-[(2,5-Di-2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl-3-thienyl) methoxy]2H- chromen-2-one) (ETECo) and methyl 2-{6-[(2,5-Di-2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl-3-thienyl) methoxy]-3-oxo-3H-xanthen -9-yl} benzoate (ETEFlo), were synthesized and their conducting polymers were electrochemically ...
ELECTROINITIATED POLYMERIZATION OF ACRYLAMIDE BY DIRECT ELECTRON-TRANSFER HACIOGLU, B; Akbulut, Ural; Toppare, Levent Kamil (Wiley, 1989-10-01) Electroinitiated polymerization of acrylamide was carried out in acetonitrile–tetrabutylammonium fluoroborate by electrolytic reduction of monomer. It was shown by cyclic voltammetry that direct electron transfer from the cathode to the monomer can be achieved in this solvent–electrolyte system. Reduction peak potentials measured by cyclic voltammetry indicated that sodium salts will interfere with such a mechanism. Since the reduction peak potential of sodium salt and dimethylformamide are found to be lowe...

Citation Formats

S. KİRALP, P. ÇAMURLU, E. G. Günbaş, C. Tanyeli, I. AKHMEDOV, and L. K. Toppare, “Electrochromic Properties of a Copolymer of 1-4-Di[2,5-di(2-thieny1)-1H-1-pyrroly1]benzene with EDOT,” JOURNAL OF APPLIED POLYMER SCIENCE, pp. 1082–1087, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/42155.