Studying of Plasma-Polymerized Pyrrole at Variable Gas Flow Rates Via Plasma Jet

Abstract

This manuscript presents a study of the production of plasma polymerized pyrrole (C4H5N) nanoparticles prepared by atmospheric pressure non equilibrium plasma jet through the parametric studies, particularly gas flow rate (0.5, 1 and 1.5 L/min). The plasma jet that was used operates with alternating voltage 8 kv and frequency 29 kHz. The plasma flow characteristics were investigated based on optical emission spectroscopy (OES). UV-Vis spectroscopy was used to distinguish the oxidization state for polypyrrole. The major absorption appears around 464.1, 449.7 and 435.3 nm at the different argon gas flow rate. The chemical composition and structural properties of the contained samples, which were synthesized at 0.5 L/min argon gas flow rate, were analyzed by Fourier transformation infrared spectroscopy (FTIR), Raman spectroscopy, scanning electron microscopy (SEM) and X-ray diffraction (XRD). SEM point to a uniform distribution of polypyrrole (PPY) nanoparticles matrix. XRD technique showed a semicrystalline pattern for PPY thin film. The excellent quality plasma polymer synthesized by atmospheric pressure plasma jet method may serve as conducting materials.