Synthesis of Poly(azomethine) Containing Sulfonic Acid Unit Oxygen and Sulphur Bridged: Investigation of Its Thermal, Optical and Electrochemical Properties

In this study, a poly(azomethine) compound (SBP) containing sulfur and oxygen bridge was obtained from 4,4'-[thiobis(4,1-phenyleneoxy)]dibenzaldehyde (DBA) 4,4'diamino-2,2'-biphenyl sulfonic acid condensation reaction. Structural, optical, electrochemical morphological analyzes of the polymeric material were performed. Structural characterizations performed 1H-NMR FT-IR spectra. Optical properties determined in UV-Vis spectrum optical band gap calculated as 3.63 eV. Electrochemical investigated by cyclic voltammetry (CV) HOMO-LUMO values calculated. addition, with help Gel Permeation Chromatography (GPC), number average molecular mass found to be 5050 Da. By thermogravimetric analysis (TGA), it that thermal decomposition SBP occurred four steps maximum loss 391 °C. The surface scanning electron microscope (SEM) rough.