Self-aggregation of surfactants in water solution by NMR

Dynamic behavior of surfactant molecules, sodium dodecyl sulfonate (SDSN), cetyl trimethyl ammonium bromide (CTAB) and triton X-100, and their micelles in water solution at various concentrations were studied by chemical shift, self diffusion coefficient (D) and nuclear magnetic resonance relaxation...

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Bibliographic Details
Published in:Science China. Mathematics 1999-03, Vol.42 (3), p.319-324
Main Authors: Hanzhen, Yuan, Youru, Du, Sui, Zhao, Jiayong, Yu
Format: Article
Language:English
Subjects:
Cetyltrimethylammonium bromide
Chains
Chemical equilibrium
Diffusion coefficient
Hydrophobicity
Magnetic induction
Micelles
NMR
Nuclear magnetic resonance
Self diffusion
Surfactants
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Summary:Dynamic behavior of surfactant molecules, sodium dodecyl sulfonate (SDSN), cetyl trimethyl ammonium bromide (CTAB) and triton X-100, and their micelles in water solution at various concentrations were studied by chemical shift, self diffusion coefficient (D) and nuclear magnetic resonance relaxation (T1 and T2) measurements. Experimental results show that there exist turning points at surfactant concentration (C) nearby the critical micelle concentration (cmc) for all of the above-mentioned parameters, which approach the constant values when C equals 5 to 10 times cmc. T1 and T2 measurements show that when C
ISSN:1006-9283
1674-7283
1862-2763
1869-1862
DOI:10.1007/BF02879067