New Synthesis and Small Angle Neutron Scattering Studies of Polyaniline Nanofibers

Nano structured polyaniline (PANI) is synthesized for the first time by polymerization of aniline in the presence of hydrochloric acid as a catalyst and ammoniumperoxidisulphate as an oxidant by the chemical oxidative polymerization method. The product powder was pelletized with help of hydraulic machine to study the XRD, SEM and SANS. The XRD pattern indicates semi crystalline nature of PANI with interplanar distance 4.210 Å and 3.774 Å respectively. The SEM pictures shows fiber like nature of particles. SANS experiment is used to find different parameters of these crystalline polymer particles. Dynamic light Scattering (DLS) studies are performed to find the sizes of nano structured polyaniline. The length and radius of nano size polyaniline are identified as 617.6 nm and 75.05 nm respectively.