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Citation: YOU Hui, ZHAO Bo, WANG Zheng-Wu. Mesoscopic Simulation on Phase Behavior of Sodium Polyoxyethylene Fatty Alcohol Sulfate in Aqueous Solution[J]. Acta Physico-Chimica Sinica, ;2009, 25(01): 67-73. doi: 10.3866/PKU.WHXB20090112 shu

Mesoscopic Simulation on Phase Behavior of Sodium Polyoxyethylene Fatty Alcohol Sulfate in Aqueous Solution

1.
Jiangsu Key Laboratory of Biofunctional Materials, School of Chemical and Environmental Science, Nanjing Normal University, Nanjing 210097, P. R. China; Department of Food Science Technology, School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240, P. R. China

Received Date: 21 July 2008
Available Online: 24 November 2008

MesoDyn density functional simulation method was used to study differences between the aggregation behavior and the synergistic effect of sodium polyoxyethylene fatty alcohol sulfate (AES) and sodium dodecyl sulfate (SDS). The ingredient concentration dependence of the AES/benzene system morphology at the mesoscopic level was also investigated. The oil elimination mechanism of AES/benzene and AES/n-octanol in micelles at 30%/5% (φ) concentrations were analyzed by density slices. AES and SDS were found to have different critical micelle concentrations and accumulation numbers because of their different molecular structures but their cooperative effect was very strong in this system. Besides the hydrophobic and hydrogen bonding interactions, the hydrophilic group also played an important role in the formation of micelles. Oil solubilization for AES/benzene and AES/n-octanol was different because of the oil’s structural distinction.
- MesoDyn; AES; Aggregation behavior; Water solubility enhancement; Synergetic effect
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