Cihaner, Atilla

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https://hdl.handle.net/20.500.14411/6658
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C.,Atilla
A., Cihaner
C., Atilla
Cihaner A.
A.,Cihaner
Cihaner, Atilla
Cihaner,A.
Atilla Cihaner
Atilla, Cihaner
Cihaner,Atilla
Cihaner, A.
Cihaner, A
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Profesör Doktor
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atilla.cihaner@atilim.edu.tr
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Chemical Engineering
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0000-0001-7605-2374
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55925768200
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ECKd5ZgAAAAJ
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AAC-9468-2021

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Electrochimica Acta15
Journal of Electroanalytical Chemistry13
Turkish Journal of Chemistry6
Dyes and Pigments6
Organic Electronics6
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Author: Cihaner, AtillaSubject: electrochemical polymerization

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Now showing 1 - 7 of 7
  • Thumbnail Image
    Article
    Citation - WoS: 65
    Citation - Scopus: 67
    An Electrochromic and Fluorescent Polymer Based on 1-(1
    (Elsevier Science Sa, 2008) Cihaner, Atilla; Algi, Fatih
    A novel polymer was synthesized by electrochemical polymerization of 1-(1-naphthyl)-2,5-di-2-thienyl-1H-pyrrole (SNS-1-NAPH). The corresponding polymer (PSNS-1-NAPH) was characterized by cyclic voltammetry, FT-IR and UV-vis spectroscopy. The polymer has a very well-defined and reversible redox process in both organic and aqueous solutions. Furthermore, it shows stable electrochromic behavior; yellow in the neutral state, green in the intermediate state and violet in the oxidized state. PSNS-1-NAPH is soluble in common solvents. Although SNS-1-NAPH is almost nonfluorescent, its polymer is a yellow and/or green light emitter. (c) 2007 Elsevier B.V. All rights reserved.
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    Article
    Citation - WoS: 6
    Citation - Scopus: 6
    Anodic Oxidation of N-Substituted Dipyrrolyl Linked by Polyether Bridge
    (Taylor & Francis inc, 2006) Cihaner, Atilla
    Electroactive polymer containing polyether pseudo-cages has been synthesized by anodic oxidation of 1,11-bis(1,1-pyrrole)-3,6,9-trioxaundecane (I) using acetonitrile (ACN) as solvent and tetrabutylammonium perchlorate (TBAClO 4 ) as supporting electrolyte. Electrochemical behavior of monomer I and its polymer, poly-I , were studied using cyclic voltammetry (CV) and UV-VIS spectroscopic techniques. Also, a doping/dedoping study was carried out using electron spin resonance (ESR) and UV-VIS spectroscopic techniques. Thermal behavior of the product was studied using differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA).
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    Article
    Citation - WoS: 24
    Citation - Scopus: 25
    A Novel Conducting Polymer Based on Terthienyl System Bearing Strong Electron-Withdrawing Substituents and Its Electrochromic Device Application
    (Elsevier Science Sa, 2008) Asil, Demet; Cihaner, Atilla; Algi, Fatih; Onal, Ahmet M.
    A novel conducting polymer bearing strong electron-withdrawing substituents (EWS) directly attached to the 3,4-positions of the thiophene ring was synthesized by electrochemical polymerization of diethyl 2,5-di(thiophen-2-yl)thiophene-3,4-dicarboxylate (SSS-Diester). The polymer (PSSS-Diester) was characterized by cyclic voltammetry, FT-IR and UV-vis spectroscopy. The polymer has a reversible redox process and demonstrates a stable electrochromic behavior: reddish orange in the neutral state, brown in the intermediate state and green in the oxidized state. Optical density and response time of the dual-type electrochromic device based on PSSS-Diester were found to be 0.23 and 0.6 s at 623 nm, respectively. It is also noteworthy that the device shows good environmental and redox stability (i.e. 94% of the optical activity of the device retained after 500th switch). (c) 2008 Elsevier B.V. All rights reserved.
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    Article
    Citation - WoS: 1
    Citation - Scopus: 1
    Electrochemical Polymerization and Characterization of Polyether-Substituted Aniline Derivatives
    (Wiley, 2007) Tirkes, Seha; Cihaner, Atilla; Oenal, Ahmet M.; Önal, Ahmet M.
    New compounds consisting of aniline units linked by polyether bridges have been synthesized and their electrochemical polymerization was performed via constant potential electrolysis and cyclic voltammetry in an aqueous solution containing 3.0 moI L-1 H2SO4. Chemical polymerization was carried out using (NH4)(2)S2O8 as oxidizing agent. It was found that both methods gave the same polymer product without any cleavage of the polyether bridge between aniline rings. The polymers were characterized using the Fourier transform infrared spectroscopic technique and the thermal behavior of electrochemically prepared polymers was investigated using thermogravimetric analysis. Spectroelectrochemical properties of the films were investigated using the in situ UV-visible spectroscopic technique. (c) 2007 Society of Chemical Industry.
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    Article
    Citation - WoS: 11
    Citation - Scopus: 14
    Electrochemical Synthesis of New Conducting Copolymers Containing Pseudo-Polyether Cages With Pyrrole
    (Elsevier Science Sa, 2007) Cihaner, Atilla
    Conducting copolymers have been synthesized via electrochemical oxidation of pyrrole (Py) in the presence of monomer 1, 11 -bis(1,1-pyrrole)-3,6,9-trioxaundecane (I) in an electrolytic solution containing 0.1 M tetrabutylammonium hexafluorophosphate (TBAPF(6)) dissolved in acetonitrile. It is observed that reversible redox behavior of poly(I-co-Py)s shifts to more positive potentials with the increasing amount of I in the comonomer mixture, indicating formation of a copolymer. It is also found that increasing the ratio of I in the comonomer mixture decreases the conductivity of the obtained polymer films. The dark electrical conductivity measurements in the temperature range of 300-100 K revealed the extrinsic type of conduction with activation energy values being in the range of 82.3-16.9 meV. (c) 2007 Elsevier B.V. All rights reserved.
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    Article
    Citation - WoS: 26
    Citation - Scopus: 30
    Electrochemical Polymerization of 9-Fluorenecarboxylic Acid and Its Electrochromic Device Application
    (Elsevier Science Sa, 2008) Bezgin, Buket; Cihaner, Atilla; Onal, Ahmet M.
    Poly(9-fluorenecarboxylic acid) (PFCA) was synthesized by electrochemical oxidation of 9-fluorenecarboxylic acid (FCA) using a mixture of nitromethane and boron trifluoride diethyl etherate as the solvent and tetrabutylammonium tetrafluoroborate as the supporting electrolyte. An insoluble and conducting brownish-orange film was deposited on the electrode surface, both during repetitive cycling and constant potential electrolysis at 1.15 V. Characterization of the polymer film has been carried out using Fourier Transform Infrared spectroscopy technique and thermal behavior was studied via thermal gravimetric analysis. Structural analysis showed that the polymerization of FCA occurred at 2,7-position. Spectroelectrochemical behavior of the polymer film on indium tin oxide working electrode was studied by recording the electronic absorption spectra, in-situ, in monomer-free electrolytic solution at different potentials and it is found that the PFCA film can be reversibly cycled between 0.0 V and 1.2 V Furthermore, a dual type electrochromic device based on PFCA was constructed and its spectroelectrochemical properties were investigated. The electrochromic device exhibits color change from transparent to dark blue with a good open circuit memory. (c) 2008 Elsevier B.V. All rights reserved.
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    Article
    Citation - Scopus: 1
    Electrochemical Copolymerization of Thiophene Containing Pseudo-Polyether Cages With Pyrrole
    (Tubitak Scientific & Technological Research Council Turkey, 2006) Cihaner, Atilla; Onal, Ahmet M.; Chemical Engineering
    Conducting copolymers were synthesized via the electrochemical oxidation of pyrrole (Py) in the presence of the monomer 1,12-bis(2-thienyl)-2,5,8,11-tetraoxadodecane (1). The presence of monomer I in the electrolytic solution greatly changed the CV behavior of Py during its potensiodynamic polymerization. The electroactivity of poly(I-co-Py) increased with the increasing amount of I in the comonomer mixture. Copolymer films were prepared via constant potential electrolysis in an electrolytic solution containing 0.1 M tetrabutylammonium hexafluorophosphate (TBAPF(6)) dissolved in acetonitrile. The spectroelectrochemical properties of the films were investigated using UV-VIS spectroscopy.