Salt-induced wormlike micelles formed by N-alkyl-N-methylpyrrolidinium bromide in aqueous solution

The wormlike micelles formed by surface active N-alkyl-N-methylpyrrolidinium bromide ionic liquids (ILs) have been investigated in aqueous solution. The typical rheological parameters and the viscoelastic properties of wormlike micelles were characterized by rheological measurements and cryogenic-transmission electron microscopy (cryo-TEM). The typical rheological parameters were further evaluated by Maxwell model and the viscoelastic properties were discussed based on the living polymer model. Cryo-TEM images confirmed the formation of wormlike micelles in aqueous solution. The effect of the hydrocarbon chain length of the ILs on the wormlike micelles formation was also studied.

The wormlike micelles formed by C16MPB in aqueous solutions was investigated by rheological and cryo-TEM.Figure optionsDownload as PowerPoint slideHighlights
► Methylpyrrolidium ionic liquid are formed wormlike micelles by salt induced in aqueous solution.
► The strong hydrophobic interactions are necessary to form the wormlike micelles in the system.
► The cryo-TEM image shows the long entangled wormlike micelles and branched micelles.