Synthesis of 6-(3,6-di(thiophene-2-yl)-9H-carbazole-9-yl)-hexanoic acid, alternating copolymer formation, characterization and impedance evaluations
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Dosyalar
Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this paper, 6-(3,6-di(thiophene-2-yl)-9H-carbazole-9-yl)-hexanoic acid (ThCzHa) comonomer was newly synthesized and characterized with Fourier transform infrared spectroscopy (FTIR) and H-1-NMR. The synthesized comonomer was electrochemically deposited onto carbon fiber microelectrode (CFME). An electrochemical impedance study on the prepared electrodes is reported. Poly(ThCzHa)/CFME is characterized by cyclic voltammetry (CV), Fourier transform infrared reflectance-attenuated total reflection spectroscopy (FTIR-ATR), scanning electron microscopyenergy dispersive X-ray analysis (SEMEDX), and electrochemical impedance spectroscopy. Capacitive behaviors of modified CFMEs were defined via Nyquist, Bode-magnitude, Bode-phase, and Admittance plots. The equivalent circuit model of R(Q(R(C(R(C(RW))))))(CR) was examined for polymer/electrolyte system. The effect of initial monomer concentration (0.5, 1.0 and 1.5mM) on the formation of alternating copolymer is reported in 0.1M sodium perchlorate/acetonitrile solution. The copolymer structure was also characterized by FTIR-ATR, SEMEDX, and CV measurements. The highest low frequency capacitance (C-LF=5.2mFcm(2)), double layer capacitance (C-dl=100Fcm(2)) and maximum phase angle approximate to 82(o) at the frequency of 0.1Hz were obtained for [ThCzHa](0)=0.5mM.
Açıklama
Anahtar Kelimeler
polymers, thin films, electrical properties, electrochemical properties, synthesis, Carbon-Fiber Microelectrodes, Electrochemical-Behavior, Conjugated Polymers, Conducting Polymers, N-Methylpyrrole, Thin-Films, Electrode, Electropolymerization, Polypyrrole, Polyaniline
Kaynak
Designed Monomers and Polymers
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
16
Sayı
4
