Interaction between a hydrophobic rigid face and a flexible alkyl tail: Thermodynamics of self-assembling of sodium cholate and SDS
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- 作者：Guangyue Baia ; baiguangyue@htu.cn" class="auth_mail" title="E-mail the corresponding author ; Jianhui Shenga ; Yujie Wangb ; yujiewang2001@163.com" class="auth_mail" title="E-mail the corresponding author ; Hui Wua ; Yang Zhaoa ; Kelei Zhuoa ; Margarida Bastosc ; mbastos@fc.up.pt" class="auth_mail" title="E-mail the corresponding author
- 关键词：Same charge surfactants ; Isothermal titration calorimetry ; Thermodynamics ; Alkyl-steroid interaction ; Non-ideality
- 刊名：Journal of Chemical Thermodynamics
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：100
- 期：Complete
- 页码：131-139
- 全文大小：1372 K
文摘
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Critical concentrations and enthalpy changes for stepwise aggregation are obtained by ITC.
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ITC allowed the thermodynamic characterization for NaCA/SDS self-assembling.
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Steroid face-to-alkyl chain hydrophobic interaction tends to be saturated at molar ratio 1:1.5.
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Alkyl-steroid interaction favors micellization of NaCA/SDS and the mixture shows nonideal behavior.
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Intermolecular interaction and excess enthalpies were discussed according to Rubingh’s model.