Melamine based novel polymer for detection of m-CPBA and its concomitant corrosion inhibition behaviour

• Published in: Journal of industrial and engineering chemistry (Seoul, Korea) Korea), 2024-10
• Main Authors: Kamboj, Manju, Rathi, Mamta, Sandhu, Navjot, Saraswat, Vandana, Khan, Babar, Mobin, Mohammad, Singh, Atul Pratap
• Format: Article
• Language: English
• Subjects: Anticorrosion; M-CPBA sensor; Melamine; One-pot synthesis; Polymer
• ISSN: 1226-086X
• DOI: 10.1016/j.jiec.2024.10.009

[Display omitted] •Synthesis of MDB polymer via facile hydrothermal approach and Characterization.•Study of porous surface structure of MDB using BET.•Exploration of surface morphology of MDB using SEM, EDS and XRD.•Examination of the corrosion inhibition effectof MDB towards mild steel in 5% HCl.•Selective response of MDB towards m-CPBA analysed using UV and PL studies. Melamine based polymers are considered to be efficient inhibitors as they form protection layer on the surface of metal and minimizes the interactions between the aggressive solutions and the metal surface. Amorphous and cost effective covalent organic polymer based on melamine (MDB) was synthesized by facile single step using hydrothermal approach. The authenticity of the synthesized compound MDB was established using various analytical techniques, including X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared spectroscopy (FT-IR). Brunauer-Emmett-Teller (BET) studies were carried out to study the synthesized polymeric structure of MDB. Thermogravimetric analysis was used to explore the thermal stability of MDB. The surface morphology of MDB was explored using Scanning electron microscopy (SEM), EDS and X-ray diffraction (XRD). The corrosion inhibition effectof MDB towards mild steel in 5 % HCl was examined using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) where MDB exhibited 87.61 % inhibition efficiency at 298 K and 1 mg/mL concentration. The photophysical studies were carried out to check the sensing behaviour of MDB towards different analytes (i.e. ROS and metal ions) and it was found to be having high sensitivity and selectivity towards m-CPBA with the detection limit of 7.5 µM.