A novel synthesis of 4-toluene 9H-carbazole-9-carbodithioate, electropolymerization and impedance study

Abstract

Among conducting polymers, polycarbazoles are known for their good electro-activity [1,2] and thermal [3][4][5], electrical [6], photo-physical [7], and electrochromic properties [8]. They have been suggested for a number of applications, such as electroluminescent devices [9], sensors [10,11], redox catalysts [12], and electrochromic displays [13]. The functional groups, such as amino, imino and sulfonic groups have been performed for achieving new polymers which meet the criteria of commercial applications [14][15][16]. There are many novel syntheses of functional polycarbazole papers. 3,6-bis (2,3-dihydrothieno [3,4-b] N-(o-ethynyl) Abstract. A novel synthesis of 4-toluene 9H-carbazole-9-carbodithioate (TCzC) was chemically synthesized and characterized by Fourier Transform Infrared (FTIR), proton nuclear magnetic resonance ( 1 H-NMR), and carbon nuclear magnetic resonance ( 13 C-NMR) spectroscopies. Specific (C sp ) and double layer capacitances (C dl ) of the electro-coated poly(carbazole) and poly(TCzC) films were obtained on glassy carbon electrode (GCE) by impedimetric method with DC potential from -0.1 to +1.0 V by increasing potential of 0.2 V. The polymers were characterized by Cyclic voltammetry (CV), Fourier transform infrared reflectance-attenuated total reflection spectroscopy (FTIR-ATR), Atomic force microscopy (AFM), and Electrochemical impedance spectroscopy (EIS). The use of additional variable (DC potential) helped to disambiguate the equivalent circuit model of R (C(R(Q(RW))))(CR).Simulation results were compared with experimental data. In this study, substituted group effects of CS 2 and tosyl on carbazole polymer were investigated by EIS technique. CS 2 group together with tosyl group in the structure of carbazole decreased the specific capacitance value (C sp = 0.43 mF·cm -2 ) compared to PCz (C sp = 1.44 mF·cm -2 ). Electropolymerization formation was seriously affected by substituted groups of CS 2 and tosyl on conjugation system because of the electron donor and acceptor ability.

Comparative analysis of poly(N-methylpyrrole) and its titanium dioxide nanocomposite film formations against equivalent electrical circuit model for the their corrosion-inhibition effects

“…All measurements began at the open circuit potential where modified polymer films were allowed to equilibrate for approximately 10 min at each potential before being measured. 35 The equivalent electrical circuit models of R s (Q c R c ) and R s (Q c R c )(Q p R ct ) were set up by Tina program.…”

Nanocomposite film formations of polyaniline via TiO2, Ag, and Zn, and their corrosion protection properties

“…Open circuit potential was used in all experiments and modified polymer films were allowed to equilibrate for 10 min at each potential before the measurements [16].…”

Electrochemical copolymerization of acrylic acid and acrylamide on the carbon fiber surface

“…18 According to the EIS plots, the impedance measurements, resistance was the real part and low-frequency capacitance (C LF ) was calculated as C LF ¼ -1/(2fZ 00 ), where f ¼ 0.01 Hz, and Z 00 was the imaginary part of the impedance. [19][20] The C LF value was obtained as 7.87, 6.92, and 7.32 mF for the initial mass ratio of 1:1, 2:1, and 4:1, respectively. In the Bode phase plot of polymer electrodeposited on carbon fiber, the maximum phase angle was calculated as 77, 77.7, and 78.2 at the frequency of 0.38, 0.32, and 0.56 Hz for the initial mass ratio of 1:1, 2:1, and 4:1, as given in Figure 6.…”