Micelle Formation of Protic Ionic Liquids in Aqueous Solution

The
ionic liquids potentialities to organize themselves in aqueous
solution and produce aggregates were analyzed through the conductivity
technique and after using a new mathematical model based on stochastic
theories, to indicate the linearity change moment; it was possible
to analyze the presence of these aggregates. It earns interest at
science of colloids and interfacial chemistry due to the recognized
ability of certain surfactant ionic liquids to reduce the surface
tension of aqueous solutions and to aggregate in the form of micelles,
even at low concentrations, allowing their use as stabilizing or destabilizing
agents in homogeneous polymerization in water/oil emulsions. Within
this context, this work aims to verify the possible micellar properties
of the ionic liquids. Critical micellar concentration values for ions
ammonium alkyl carboxylates were obtained. It was also shown that
the CMC is directly related to the lipophilic groups of the cation
and entropic factors.