ISSN:
1435-1536
Keywords:
Organogels
;
lecithin
;
self-diffusion
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract We report NMR-PFGSE self-diffusion coefficient measurements of long cylindrical reverse micelles in ternary system lecithin/cyclohexane/water.1H-NMR linewidth values of the trimethylammonium signal, as a function ofW 0, at different temperatures and lecithin concentrations, were also determined. The measured water self-diffusion coefficients, $$D_{H_2 O}$$ , show a strong dependence onW 0. Both $$D_{H_2 O}$$ andD lec (lecithin self-diffusion) exhibit a characteristic dependence on the experimental time scale. An attempt to rationalize the data obtained in terms of different motional regimes is reported.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01188948
