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1 2019

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Aminokwasowe ciecze jonowe

Samaszko-Fiertek Justyna, Sowińska Kamila, Dmochowska Barbara, Ślusarz Rafał, Madaj Janusz

Wiadomości Chemiczne

2019

[Z] 73, 11-12

737--751

Ionic liquids (IL) are defined as compounds consisting only of ions with a melting point below 100°C. [1,2,4]. The first obtained ionic liquid was ethylammonium nitrate synthesized in 1914 by Paul Walden as a result of the protonation of ethylamine with nitric acid [4]. New group of IL are amino acid ionic liquids. They are non-toxic and bio- renewable ionic liquids of natural origin. The amino acids contain at least two functional groups, an amino group and a carboxyl group, which makes them both cationic and anionic in the amino acid ionic liquid. Amino acid ionic liquids attract more and more attention in the field of catalysis, as solvents in chemical transformations and cellulose solvents due to low production costs and their biodegradable. Compounds based on imidazolium, phosphonium, ammonium and choline ionic liquids found a wide application in biological sciences, modern chemistry and materials science [10]. One of their biggest advantages is the ability to absorb CO2 (especially their amino acid derivatives), which increases the chance of eliminating carbon dioxide from the environment. Amino acid ionic liquids have also found application in the field of catalysis.