Synthesis and evaluation of poly (Indole/Thiophene) fused ring derivative for C- steel corrosion inhibitor in sulfuric acidic medium | ||||
| Egyptian Journal of Chemistry | ||||
| Article 64, Volume 64, Issue 10, October 2021, Page 6053-6066 PDF (1.4 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2021.79610.3914 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Asmaa A. I. Ali1; Rasha Abdel Baseer   2; H. M. Abo-Salem3; S.M. Syam1
| ||||
| 1Physical Chemistry Department, faculty of science, Benha University, Benha-Egypt | ||||
| 2Polymers and Pigment Department, Chemical Industries Research Division, National Research Centre | ||||
| 3Department of Natural Compounds, Pharmaceutical Industries Research Division, National Research Centre, Dokki-Giza- Egypt | ||||
| Abstract | ||||
| The current study aims to explore the anti-corrosion performance of Poly [2 -amino -4(1 -benzyl -1H -indol - 3 -yl) thiophene - 3 - carbonitrile)] (PABITC) on C-steel in in 0.50 M H2SO4 using weight loss and potentiodynamic polarization measurements (PDP).. PABITC was synthesized with different molecular weights 882, 921, 1388, 15788 g/mol using APS as an oxidizing agent. The chemical structure of the polymer was characterized using H1NMR, DNMR, C13NMR, and FTIR spectroscopy. Polarization results reveal that the synthesized polymer acts as a hybrid-type inhibitor. The adsorption of inhibitory atoms of the polymer on the C- steel surface followed Langmuir isotherm. SEM and EDX assure the development of PABITC adsorbed film on the C- steel surface. Quantum calculations were carried out to elucidate the reactive sites in PABITC. All the results approve that PABITC makes a resistive layer to shrink the corrosion process. | ||||
| Keywords | ||||
| Poly(2-amino-4(1-benzyl-1H-indol-3-yl)thiophene-3-carbonitrile); C- steel; Corrosion inhibition | ||||
|
Statistics Article View: 233 PDF Download: 196 |
||||
