Effects of Concentration and Conformation of Surfactants on Phase Separation of Surfactant-Water-Oil Systems
YUAN Yin-Quan1,2 , ZOU Xian-Wu1 , LIU Hao-Yang1
1 Department of Physics, Wuhan University, Wuhan 430072
2 Department of Physics, Xiaogan University, Xiaogan 432100
Effects of Concentration and Conformation of Surfactants on Phase Separation of Surfactant-Water-Oil Systems
YUAN Yin-Quan1,2 ;ZOU Xian-Wu1 ;LIU Hao-Yang1
1 Department of Physics, Wuhan University, Wuhan 430072
2 Department of Physics, Xiaogan University, Xiaogan 432100
关键词 ：
68.05.-n ,
64.75.+g ,
82.70.Uv ,
36.20.Ey
Abstract ： The effects of surfactants on the phase separation of surfactant-water-oil systems have been investigated by using discontinuous molecular dynamic simulations. The phase separation speed and equilibrium configuration are dependent on the surfactant concentration and conformation. The equilibrium concentration of surfactants at the interface remains constant. With the increasing surfactant concentration, the equilibrium configuration crosses over from the disperse phase to the bicontinuous one. The crossover concentration is estimated. The conformation of the surfactant has little effect on the equilibrium concentration of surfactants at the interface, while it affects the equilibrium configuration after phase separation.
Key words ：
68.05.-n
64.75.+g
82.70.Uv
36.20.Ey
出版日期: 2004-04-01
:
68.05.-n
(Liquid-liquid interfaces)
64.75.+g
82.70.Uv
(Surfactants, micellar solutions, vesicles, lamellae, amphiphilic systems, (hydrophilic and hydrophobic interactions))
36.20.Ey
(Conformation (statistics and dynamics))
引用本文:
YUAN Yin-Quan;ZOU Xian-Wu;LIU Hao-Yang. Effects of Concentration and Conformation of Surfactants on Phase Separation of Surfactant-Water-Oil Systems[J]. 中国物理快报, 2004, 21(4): 709-712.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2004/V21/I4/709
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