Ester-imidazoline: Modification of imidazoline using MAOS (microwave assisted organic synthesis) method as corrosion inhibitor towards carbon steel

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Abstract

Imidazoline is an organic compound that widely used as a corrosion inhibitor. Based on its structure, imidazoline is a heterocyclic compound having a pendant group and hydrocarbon chain which important for its activity as corrosion inhibitor. This research was conducted to modify the imidazoline structure to increase its activity in inhibiting corrosion towards carbon steel. In this research, ester-imidazoline from aminoethylethanolamine (AEEA) and oleic acid (OA) was successfully synthesized with an equivalent ratio of 1:2 (mole/mole) in xylene solvent with various reaction times using MAOS (Microwave Assisted Organic Synthesis) method. The optimum yield was obtained at 9 min reached 87.53 % yield. Ester-imidazoline was analyzed using thin layer chromatography (TLC) and elucidated using FTIR, UV-Vis, and 1H-NMR spectral data. Furthermore, the ability of ester-imidazoline to inhibit corrosion was measured towards carbon steel in 1% NaCl with various concentrations using Tafel polarization method to afford the inhibition efficiency (% IE). The highest % IE was yielded in 100 ppm with % IE value of 51.26 %. This study reported the first modification of imidazoline to yield ester-imidazoline using MAOS method along with its anticorrosion activity.

Original languageEnglish
Title of host publicationProceedings of the 5th International Symposium on Current Progress in Mathematics and Sciences, ISCPMS 2019
EditorsTerry Mart, Djoko Triyono, Tribidasari Anggraningrum Ivandini
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735420014
DOIs
Publication statusPublished - 1 Jun 2020
Event5th International Symposium on Current Progress in Mathematics and Sciences, ISCPMS 2019 - Depok, Indonesia
Duration: 9 Jul 201910 Jul 2019

Publication series

NameAIP Conference Proceedings
Volume2242
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference5th International Symposium on Current Progress in Mathematics and Sciences, ISCPMS 2019
CountryIndonesia
CityDepok
Period9/07/1910/07/19

Keywords

  • Aminoethylethanolamine
  • corrosion inhibitor
  • ester-imidazoline
  • imidazoline
  • MAOS

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