Marangoni flow around a camphor disk regenerated by the interaction between camphor and sodium dodecyl sulfate molecules
Marangoni flow around a camphor disk regenerated by the interaction between camphor and sodium dodecyl sulfate molecules
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DOI：
10.1016/j.colsurfa.2014.10.041
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发表时间：
2015-02
期刊：
影响因子：
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通讯作者：
S. Nakata;Ryoichi Tenno;Ayano Deguchi;Hiroya Yamamoto;Y. Hiraga;S. Izumi
中科院分区：
文献类型：
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作者：
S. Nakata;Ryoichi Tenno;Ayano Deguchi;Hiroya Yamamoto;Y. Hiraga;S. Izumi
通过实验研究了樟脑与十二烷基硫酸钠(十二烷基硫酸钠)之间的相互作用，以了解在添加十二烷基硫酸钠的情况下，水中樟脑圆盘周围的Marangoni流动的恢复情况。随着十二烷基硫酸钠浓度的增加，流速在临界胶束浓度(CMC)以下几乎为零，但在临界胶束浓度以上又增大。通过~(13)C核磁共振、NOE实验和质谱学研究了樟脑与十二烷基硫酸钠分子间的相互作用，结果表明，樟脑在十二烷基硫酸钠水溶液中的溶解速率增加。实验结果表明，随着樟脑在十二烷基硫酸钠胶束中溶解程度的增加，Marangoni流动得以恢复。
The interaction between camphor and sodium dodecyl sulfate (SDS) was experimentally investigated to understand restoration of Marangoni flow around a camphor disk on water under the addition of SDS. With an increase in the concentration of SDS, the flow velocity decreased to almost zero up to the critical micelle concentration (cmc), but increased above the cmc. Speed of Marangoni flow around the camphor disk increased with an increase in the scale of the aqueous channel.13C NMR, NOE experiments, and mass spectrometry were used to evaluate the interaction between camphor and SDS molecules, which increased the dissolution rate of camphor into the SDS aqueous solution. The experimental results suggest that an increase in the dissolution of camphor into SDS micelles induces the restoration of Marangoni flow.