Ionic liquids with perfluorinated side chains are prepared as hybrid materials for surface impregnation. For the cationic part, methyl and ethyl pyridinium as well as imidazolium scaffolds are used. The anions are hydroxide, acetate, trifluoroacetate, triflate, triflimide, chloride, bromide, iodide, hydrogensulfate, and perfluorododecanoate. The key feature of this investigation are relatively short perfluorohexyl residues as the fluorinated part of the salts, making the target compounds beneficial alternatives to established products because of their lower bioaccumulativity. One compound yielded single crystals suitable for X-ray structure analysis revealing a layered structure with relatively well-resolved, hard ionic domains alternating with disordered, soft perfluorinated layers. The wettability of all 30 materials was investigated by water contact angle measurements of a thin film on a glass surface. In two cases, promising contact angles (130° and 140°) were observed indicating, that the products might be suitable candidates for the impregnation of surfaces.
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Alfa Chemistry employs more than 200 full time staff, of which approximate 80 are Ph.D. and M.S. chemists, specialized in synthetic chemistry, process optimization, and research. 1-propenyl-3-methylimidazolium acetate
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