Towards a Strategy for the Synthesis of Polymeric Ionic Liquids with a Bulk Anion in Various Reaction Media

Abstract:

The interest in polymerizable ionic liquids of researchers is due to their unique properties, such as good thermal stability, low vapor pressure, and wide potential window of stability. The complex of these properties determines the prospect of using ionic liquids and polymers based on them in the technology of membrane separation. This article describes the synthesis of monomeric ionic liquids (IL) containing quaternary amino groups, pyridine, and imidazole groups based on vinyl benzyl chloride (conversion was 95%). Further, on their basis, polymer ionic liquids were obtained by the method of free radical polymerization with bulky anionic substituents. Proof of the formation of polimeric IL was carried out by NMR and FTIR spectroscopy methods. The molecular weight of the IL was determined by gel permeation chromatography and reached ~ 140,000. An anion exchange reaction was carried out to replace the Cl anion with Tf₂N.

• Periodical: Key Engineering Materials (Volume 887)
• Pages: 98-104
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.887.98
• Online since: May 2021
• Authors: M.E. Atlaskina*, A.E. Mochalova, V.M. Vorotyntsev
• Keywords: Bis- (trofluoromethylsulfonyl) Imide, Ionic Liquid, Polymer Ionic Liquids

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