Efficient route synthesis of new polythiazoles and their inhibition characteristics of mild-steel corrosion in acidic chloride medium
By Sayed, Abdelwahed R.; Saleh, Mahmoud M.; Al-Omair, Mohammed A.; Al-Lateef, Hany M. Abd
Published in Journal of Molecular Structure
2019
Abstract
In this work, an expedient and good yielding prepared tactic for production of polythiazoles offered through treatment of bis-hydrazonoyl halides with bis (hydrazinecarbothioamide). The description scheme for the final polymers is proposed and discussed. Organic substances of the final products were clarified by spectral data. The prepared polythiazoles compounds were examined as corrosion inhibitors for M-steel in 2.0 N HCl solutions. The corrosion inhibition performance was determined by electrochemical techniques including open circuit potential (OCP), electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) measurements. The obtained outcomes showed that such two polymer inhibitors could effectively inhibit the corrosion of M-steel of in the studied media, especially at their low concentrations; the inhibition capacity was increased from 55.8% in the presence of 10 ppm