Synthesis and Characterisation of Inorganic Acid Doped Conducting Polymer

Conducting polymeric materials containing conjugated bonds have attracted much interest in scientific and technological areas in recent years. The unique optical, electrical and chemical properties offer these materials to be used in electronic displays, telecommunication, biosensors, anti-corrosion coatings and etc. On comparing with polyaniline, poly ortho toluidine have attracted considerable attention as they exhibit better solubility in wide range of solvents. Poly (o-toluidine) (POT) was synthesized by chemical oxidative polymerisation technique by using sulfuric acid (H2SO4) as protonisation agent and ammonium peroxo disulfate (APS) as oxidizing agent .The optical, structural, morphological and size of particles have been investigated. X-ray diffraction showed that the POT is a partially crystalline polymer due to doping of highly concentrated sulfuric acid. A flaky like feature was observed via scanning electron micrograph (SEM). Better protonation effect of POT was indicated by UV spectroscopy. Chemical structure of POT was investigated by FT-IR. Nano particle size analysis displays that the synthesized POT has good result because the particle size is below than 100 nm.