Water Diffusion and Headgroup Mobility in Polymer-like Reverse Micelles: Evidence of a Sphere-to-Rod-to-Sphere Transition

@article{Angelico1998WaterDA,
  title={Water Diffusion and Headgroup Mobility in Polymer-like Reverse Micelles: Evidence of a Sphere-to-Rod-to-Sphere Transition},
  author={Ruggero Angelico and Gerardo Palazzo and Giuseppe Colafemmina and Peter Albert Cirkel and Mauro Giustini and Andrea Ceglie},
  journal={Journal of Physical Chemistry B},
  year={1998},
  volume={102},
  pages={2883-2889}
}
A pulsed gradient spin-echo FT 1H NMR study on the system soybean lecithin/water/perdeuterated cyclohexane is presented. The self-diffusion coefficient of water, Dw, was measured as a function of the water content (W0) and was found to show a bell-shaped trend. The composition at which the maximum in Dw occurs is the same at which the viscosity is the highest. We rationalize the rising part of the plot in terms of a water diffusion inside wormlike reverse micelles which increase their length… 
Viscoelasticity and interface bending properties of lecithin reverse wormlike micelles studied by diffusive wave spectroscopy in hydrophobic environment.
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The combined steady-shear electrical and microstructural measurements are capable, for the first time, of resolving branch breaking at low shear rates prior to alignment-driven anisotropy at higherShear rates.
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