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Study of the premicellar state in aqueous solutions of sodium dodecyl sulfate by nuclear magnetic resonance diffusion
Magnetic Resonance in Chemistry ( IF 1.9 ) Pub Date : 2021-04-17 , DOI: 10.1002/mrc.5165
Victor P Arkhipov 1 , Ruslan V Arkhipov 2 , Natalia A Kuzina 1 , Andrei Filippov 3, 4
Affiliation  

Self-diffusion coefficients of sodium dodecyl sulfate (SDS) were measured in aqueous solutions in the premicellar range of the SDS concentrations 7–34.7 mM and temperatures 30–90°C. Average effective hydrodynamic radii and aggregation numbers of SDS in the premicellar region were determined. At C < CMC at all temperatures, the SDS solution is the solution of monomers. At C > CMC, the increase of temperature leads to decrease in the effective hydrodynamic radii and the average aggregation numbers. At C > > CMC, it is impossible to reach the monomeric state by increasing the temperature.

中文翻译:

核磁共振扩散研究十二烷基硫酸钠水溶液中的胶束态

在 SDS 浓度为 7–34.7 mM 和温度为 30–90°C 的预胶束范围内,测量了十二烷基硫酸钠 (SDS) 在水溶液中的自扩散系数。测定了预胶束区域中 SDS 的平均有效流体动力学半径和聚集数。在所有温度下 C < CMC 时,SDS 溶液是单体的溶液。在 C > CMC 时,温度的升高导致有效流体动力学半径和平均聚集数的降低。在 C > > CMC 时,不可能通过升高温度达到单体状态。
更新日期:2021-04-17
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