Fixation of ionic liquids into polyether-based polyurethane films to maintain long-term antistatic properties
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Fixation of ionic liquids into polyether-based polyurethane films to maintain long-term antistatic properties
TakuyaIwataabcAkikoTsurumakiabSaoriTajimaabHiroyukiOhno
Abstract
Ionic liquids (ILs) were fixed into polyether-based polyurethane (PU) films for sustainable antistatic properties. Preliminarily, ILs were screened in terms of efficiency of antistatic effect. Surface resistivity (ρs) for IL-doped PU films changed depending the anion species, and the smallest ρs was found for the PU films containing bis(trifluoromethanesulfonyl)imide ([Tf2N])-type ILs. Then, [Tf2N]-type ILs composed of ammonium cations having hydroxyl groups were fixed into the PUs through urethane bonds. The fixation of 1000 ppm of the ILs reduced the ρs of the PU films from 2.1 × 1012 to 2.1 × 109 Ω sq?1. These IL-fixed PU films were revealed to possess high washing durability confirmed by negligible change of ρs before and after ultra-sonication treatment in methanol.
Graphical abstract
標(biāo)簽: 雙三氟甲磺酰亞胺鋰 LiTFSI TFSI離子液體 抗靜電 離子液體抗靜電劑
