A series of cation-fluorinated phosphonium-based salts were prepared via UV-initiated thiol-ene click chemistry in the pursuit of ionic liquids with high degrees of fluorination. Briefly, tertiary phosphines were quaternized to contain a terminal alkene and subsequently subjected to anion exchange. UV-initiated thiol-ene click chemistry was employed using a fluorinated thiol to produce the final materials. The novel starting materials and products were analyzed extensively using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) in addition to the usual analytical methods. Physical properties, such as density, viscosity, and solubility, were also measured.

Cation-fluorinated phosphonium-based salts prepared via thiol-ene click chemistry: Continuing the pursuit of highly-fluorinated ionic liquids

ACS Spring 2022

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