Molecularly imprinted poly (4,4′-methylenedianiline) as electrochemical sensor for determination of 1-benzothiophene

Self-cross linked poly (4.4'-methylenedianiline) as a conductive polymer was prepared via oxidative polymerization of 4.4'-methylenedianiline. Synthesis of poly 4.4'-methylenedianiline in acidic condition, leads to formation of phenazine structural units. Molecularly imprinted poly 4A'-methylenedianiline, synthesized using 1-benzothiophene as template. The pi-pi stacking effect between 4.4'-methylenedianiline and 1-benzothiophene, made the compact imprinted polymer and more imprinted sites. Field emission scanning electron microscopy, Fr-IR spectroscopy, X-ray diffraction and differential scanning calorimetry were used to characterize the morphology and structure of the poly- (4.4'-methylenedianiline). Detection of 1-benzothiophene was performed with molecularly imprinted poly- (4.4'-methylenedianiline) modified electrode. Cyclic voltammetry was used to character the molecular imprinted polymer and nonimprinted polymer.