Investigation on synthesis of two ammonium based ionic liquids from fatty acids and triethylamine

Thuy Thi Le Bui, Tien Anh Dang, Khun Borin, Thanh Nam Ly, Trung Tuan Pham, Thanh Xuan Thi Phan, Ngoc Pham-Cong

Abstract


Two ionic liquids triethylammonium oleate and  triethylammonium stearate were synthesized from fatty acids and triethyl amine using two different methods (one step and three step methods). The yield triethylammonium oleate rearch 68.8-74% (one step method) and 86.3% (three step method) and of triethylammonium stearate rearch 68.7-74.1 (one step method) and 83.5% (three step method). The one step method spends more time but less chemicals and brings higher yield. FT-IR and 1H-NMR spectra of ILs obtained from both method was measured. The results showed that synthesis method doesn’t affect on the structure of the products and ILs obtained from one step method has higher purity.

Keywords


Ionic liquid; synthesis; fatty acid; triethyl amine

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DOI: https://doi.org/10.51316/jca.2023.012

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