Guanidinium-containing oligomeric cationic protonic ionic liquid

TitleGuanidinium-containing oligomeric cationic protonic ionic liquid
Publication TypeJournal Article
Year of Publication2019
AuthorsVortman, MY, Lemeshko, VN, Shevchenko, VV
Abbreviated Key TitleDopov. Nac. akad. nauk Ukr.
Date Published12/2019

By the reaction of oligomeric oxyalkyl aromatic diepoxide with guanidine, followed by the neutralization of the product with hydrochloric acid, a new type of reactive proton cationic oligomeric ionic liquids is synthesized. Its structure is characterized by the presence of guanidinium groups at the ends of the hydrophobic alkylaromatic hydroxyl-containing oligoether chain. The chemical structure of this compound was characterized by IR, 1H and 13C NMR spectroscopy, and its molecular weight characteristics were determined. The synthesized proton oligomeric ionic liquid is characterized by an amorphous structure with a glass transition temperature of 70 ºC. The proton conductivity of this compound is 1.94 • 10–3 S/cm at 120 ºC, and, in terms of surface activity, it is at the level of classical surfactants. The synthesized oligomeric ionic liquid is of interest as an electrolyte operating under fresh conditions, a fungicide, a surfactant, as well as a starting reagent for the synthesis of ion-containing block copolymers.

Keywordsguanidinium-containing oligomeric ionic liquid, ionic liquids, proton cationic oligomeric ionic liquid

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