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Citation: HU Shang-Lin, LU Ting, LAN Yu-Ru, HUANG Jian-Bin. Surface Properties of Gemini Surfactants in Ethanol-Water Mixtures[J]. Acta Physico-Chimica Sinica, ;2008, 24(12): 2309-2313. doi: 10.3866/PKU.WHXB20081227 shu

Surface Properties of Gemini Surfactants in Ethanol-Water Mixtures

1.
College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China; College of Chemistry and Material, Longyan University, Longyan 364000, Fujian Province, P. R. China

Received Date: 7 July 2008
Available Online: 23 October 2008

Surface properties of Gemini surfactants 12-s-12 (Et)(s=4, 6, 8, 10, 12) in ethanol/water solvents were studied by measurement of surface tension curves. Values of the critical micelle concentration (cmc), surface tension at the cmc (γcmc), saturation adsorption (Γmax) and minimumarea per surfactant molecule (Amin) for Gemini surfactants in various ethanol/water mixture ratios were determined. The effect of ethanol addition on the cmc and γcmc for this series of surfactant systems is discussed.
- Gemini surfactants,
- Surface properties,
- Ethanol-water mixed solvent
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