Monitoring the different micelle species and the slow kinetics of tetraethylammonium perfluorooctane-sulfonate by 19F NMR spectroscopy

Micelles of a fluorinated surfactant in water grow more complex in virtue of hydrophobic counterions and the slow kinetic exchange process exists. Four sets of signals including the monomer signal and three sets of micelle signals which correspond to spherical micelles, wormlike micelles/wormlike micelles with rings in end caps and toroidal micelles, were effectively detected on the 19F NMR time scale.134