water solubilizing capacity of AOT in the latter solvents is reduced because of more favorable AOT-solvent interactions.In cyclohexane, motional differences in the AOT alkyl chains exist between the inverted micelles and the w/o microemulsions. Frequency-dependent data indicate a complex series of motions in the inverted micelles; motion at each carbon-carbon bond cannot be considered independent of other motional contributions. While NMR offers the promise of a complete description of the motional factors involved, in practice this may be impossible.In all three solvents the relaxation of the carbons nearest the head group is dominated by overall aggregate motion.This correlation holds up to intermediate R values. At higher R, other motions, such as monomer diffusion, are contributing to the relaxation process. This work has further emphasized the distinction between Aerosol OT inverted micelles, and w/o microemulsions.
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