Synthesis and charaterization of aromatic compounds containing imine and amine groups via catalytic/oxidative polymerisation

The studies done within the context of dissertation were carried out in three stages. In the first stage, Schiff base compounds were synthesized with the condensation reactions of 3,5-diaminobenzoic acid and 4,4'-diaminobenzanilit with 4-hydroxybenzaldehyde, salicylaldehyde, 2-hydroxy-1-naftaldehyde, and vanillin. The polymers of the obtained Schiff bases were synthesized in aqueous alkaline medium by oxidative polycondensation method using NaOCl as the oxidant. In the second stage, polyphenol derivatives of some Schiff bases, which were obtained from the reactions of 3,5-diaminobenzoic acid and 4,4'-diaminobenzanilit with vanillin and 4-hydroxy benzaldehyde, were synthesized using the catalytic oxidative polycondensation method. In the last stage the amines such as 2,5-diaminobenzene sulfonic acid, o-tolidine, 2,2'-dithiodianiline, 4,4'-diamino-2,2'-biphenyl sulfonic acid, 3,4-diaminobenzoic acid, 3,5-diaminobenzoic acid, 4,4'-diaminobenzanilide which include different functional groups in the aromatic ring were polymerized using the above mentioned method in the first stage. Structural characterizations of the synthesized compounds were carried out by FT-IR, 1H-NMR, 13C-NMR, average molecular weight, surface morphology, optical properties by UV-vis and fluorescence measurements, electrochemical behaviours with CV, and thermal characterizations by TG, DTA, and DSC measurements. Additionally, the solubilities of the synthesized Schiff bases and the polymers in different organic solvents were investigated.