Abstract
The formation of micelles in aqueous mixtures of a carbohydrate-based bolaamphiphile and sodium,dodecyl sulfate (SDS) is investigated by surface tension and small-angle neutron scattering. The obtained,values of critical micelle concentration (CMC) are analyzed within the framework of regular solution theory. Synergetic interactions between the bolaamphiphile andSDSare observed (parameter ‚ is negative;,a minimum in the plot CMC vs composition). SANS data are collected for mixtures containing protonated and deuterated SDS. This gives us the possibility to conclude that mixed micelles with a homogeneous distribution of surfactant molecules within the micelle are formed. The shape of the micelles is found to,be slightly oblate.
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