Chemical formation, characterization and properties of polycarbazole

Abstract

Polycarbazole (PCz) was synthesized by chemical polymerization of carbazole in acetonitrile medium using ammonium persulfate as oxidant. The selection of solvent, concentration of the monomer, composition of the solvent, polymerization time, temperature, and pH were optimized to obtain better quality and yield of the polycarbazole. The synthesized polycarbazole was characterized by various techniques such as UV-Visible, FTIR, 1 H-NMR, 13 C-NMR, COSY, NOESY, and XRD spectroscopy. The solubility of the polycarbazole was tested in various solvents. The thermodynamic stability of the polycarbazole was examined by DSC and TGA-DTA analysis.

Facile synthesis of an electrically conductive polycarbazole–zirconium(iv)phosphate cation exchange nanocomposite and its room temperature ammonia sensing performance

“…These results are in good agreement with the earlier reports[24]. The peaks at 590 and 744 cm -1 in the spectrum of PCz might be attributed to C=C out of plane twisting and vibrations of ring distortion of aromatic structure of PCz moiety, respectively.…”

“…PCz showed peaks at 21.1, 23.9, 29.4, 33.1 and 35.1 o 2θ, which is in accordance with the previously published reports[24][25]. PCz showed peaks at 21.1, 23.9, 29.4, 33.1 and 35.1 o 2θ, which is in accordance with the previously published reports[24][25].…”

Chemical synthesis, characterization, and properties of conducting copolymers of imidazole and carbazole

“…56 The diffraction pattern of PCZ have peak at about 2y ¼ 20.1 , which is a characteristic peak of poly(carbazole). 51 The characteristic peak of PCZ has been shifted slightly to low angle in the copolymer. This shows the crystalline nature of the copolymer.…”

“…It is reported that poly (carbazole) exhibits ANHA stretching vibration 51 at 3053 cm À1 and poly(imidazole) exhibits ANHA vibration weak peak at 3077 cm À1 . Sharp band at 3052 cm À1 due to characteristic NAH stretching vibration suggests the presence of ANHA groups in IMI and CZ units.…”

Electromechanical response of silk fibroin hydrogel and conductive polycarbazole/silk fibroin hydrogel composites as actuator material

“…The characteristic peaks can be identified at 3192, 1620, 1440, 1200, 825, and 700 cm − 1 . These peaks can be assigned to the N-H stretching of the heteroaromatics; the C_C stretching of the aromatic compound; the C-N stretching of substitutions; the C-H in plane bending; the C-H deformation of tri-substituted benzene; and the C-H out-of-plane bending, respectively [15,23].…”