The ester group is introduced into the side chain of the cation of the ionic liquid to obtain an ester group functionalized ionic liquid. In ester functionalized ionic liquids, cations are introduced into the side chains of pyridine and imidazole nitrogen atoms from ester groups, and ionic liquids with different properties can be obtained by introducing ester chains of different chain lengths. When the anion is generally BF6- or PF6-, the ester-based functionalized ionic liquid has better stability. Ester Functionalized Ionic Liquids https://ionicliquids.alfa-chemistry.com/products/ester-functionalized-ionic-liquids-2632.html
