Novel polymerized ionic liquids having an organoboron unit were prepared for the purpose of
selective lithium cation transport. Hydroboration polymerization of 1,3-diallylimidazolium bromide and subsequent
anion exchange reaction with LiTFSI [lithium bis(trifluoromethylsulfonyl)imide] afforded the corresponding
organoboron polymer electrolytes in 89−81% yield. The structure of polymers was supported by 1H and 11B
NMR spectra. After the addition of an equimolar amount of LiTFSI toward the organoboron unit, an ionic
conductivity of 3.74 × 10-5−1.93 × 10-5 S/cm was observed at 50 °C. The lithium transference number for
these systems was 0.87−0.45 at 30 °C. This demonstrates that anion trapping of the organoboron unit works
very effectively in IL-based matrices compared with polyether-type matrices.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.