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Influence of annealing temperature on optical, chemical and particle size properties of polyaniline nanomaterial

  • Dhachanamoorthi N II M.Sc. Physics, PG Department of Physics, Vellalar College for Women, Erode-12, Tamil Nadu, India.
  • Haripriya S II M.Sc. Physics, PG Department of Physics, Vellalar College for Women, Erode-12, Tamil Nadu, India.

Abstract

Polyaniline is a representative conducting polymer because of its high electrical conductivity in doped state and it’s used in various fields of science and engineering because of its unique characteristics. Polymers are playing a dominant role in many areas such as material sciences, textile industries and chemical industries. Monomers of aniline are combined together to form a polymer of polyaniline by chemical oxidative polymerization method. The process of synthesis includes 1.5 M of aniline (C6H5N) as main reagent which causes chemical reaction, Sulfuric acid (H2SO4) as a dopant which alters its original electric and optical properties and Ammonium Peroxydisulfate (APS) as an oxidant which has the ability to oxidize and accept electrons. The synthesized nanoparticles are subjected to heating process at two different temperatures (200˚C and 400˚C). The prepared polymer material is characterized by UV-Visible Spectroscopy,Fourier Transform Infra-Red Spectroscopy, Particle Size Analyzer and antibacterial activity. The electron transition from ground state to excited state was revealed by UVVis Spectroscopy. Polymeric materials are identified using FTIR spectroscopy and it also exhibits the chemical bonds and structure of the sample. Particle Size Analyzer represents the mean size of the polyaniline sample. The overwhelming potential application of polyaniline includes manufacturing of circuit board, corrosion resistance, and fabrication of smart textiles.

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