Proton NMR, carabon-13 NMR, light-scattering, and density measurements were used to investigate association structures and molecular interactions during water solubilization in polyoxymethylene dodecyl ether/benzene systems at high surfactant concentrations. The results indicated an absence of association aggregates at low water concentrations. At water contents between 10 and 20%, association structures started to form, probably micelles of the inverse type, in which the water-polyoxymethylene chain interaction is the predominant feature. There is evidence that the average chain conformation changes with water content, and that bound water molecules are distributed evenly along the polyethoxyethylene chain. At higher water concentration, the results indicated a water-rich core to be formed, supported by the close resemblance of the water properties to these of native water. © 1980 American Chemical Society.
H. Christenson et al., "NMR Investigations Of Aggregation Of Nonionic Surfactants In A Hydrocarbon Medium," Journal of Physical Chemistry, vol. 84, no. 26, pp. 3633 - 3638, American Chemical Society, Jan 1980.
The definitive version is available at https://doi.org/10.1021/j100463a028
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01 Jan 1980