Effect of Organic Solvents on Stability of Liquid Surfactant Membranes

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Kunio Watanabe²  Hiroshi Takeuchi¹  Takumi Kinugasa² 

[1] Department of Chemical Engineering, Nagoya University;Department of Industrial Chemistry, Niihama National College of Technology

关键词: Liquid Surfactant Membrane;    Water Permeation;    Membrane Breakdown;    Stability;    Osmotic Pressure;    Solvent Effect;    Permeability;   

DOI  :  10.1252/jcej.22.593

来源: Maruzen Company Ltd

【 摘 要 】

References(10)Cited-By(18)The effect of osmotic pressure gradient on the stabilities of various liquid surfactant membranes (LSMs) consisting of organic solvents was studied in terms of the change in water content of (W/O) emulsions and the breakdown ratio of the liquid membrane. No water permeation into (W/O) droplets through the membrane was observed under isotonic conditions; the entrainment of external aqueous phase was suppressed in the presence of electrolytes in the continuous phase. A greater osmotic pressure gradient brings about larger changes in the water content and membrane breakdown. A liquid membrane consisting of aliphatic hydrocarbons becomes more stable with increasing number of carbon atoms, while one consisting of toluene has very low mechanical strength. The value of the water permeation coefficient was found to be in the range from 2.9 × 10–7 to 1.5 × 10–6 m/s.

【 授权许可】

Unknown