Abstract
Abstract The dynamic structure of Aerosol OT molecules in micellar state was studied by measurements of 13C-NMR spin-lattice relaxation time (T1) and the effect of a lantanide shift reagent Yb(fod)3 in chloroform at 25 MHz and 40°C. The results were analyzed on the basis of the conformation and segmental motions of Aerosol OT molecules in micellar state, with the following conclusions: Aerosol OT molecules in the micellar state associate with each other by the polar head groups; their hydrocarbon chains are flexible; the mobility of side chain is restricted to a greater extent than that of the main chain; carbonyl carbon-(2′) is located nearer to the polar group than carbon-(2) in steric conformation.
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