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Effects of the dispersed droplet sizes on the critical behavior of pseudobinary microemulsion

  • Brief Communication/Physical Chemistry
  • Published:
Chinese Science Bulletin

Abstract

The critical behavior of pseudobinary microemulsion systems {water/sodium di(2-ethylhexyl) sulfosuccinate (AOT)/n-decane} with various droplet sizes was studied by measurements of refractive index. It was found that the critical exponents β for all systems approach 0.327 in a region sufficiently close to the critical temperature, which is consistent with 3D-Ising universality class. The critical temperatures linearly decrease as the dispersed droplet sizes increase. The critical amplitude almost linearly in-creases with increasing the dispersed droplet sizes.

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Authors and Affiliations

  1. Department of Chemistry, Lanzhou University, Lanzhou, 730000, China

    HongLan Cai & WeiGuo Shen

  2. College of Chemistry and Environment Science, Nanjing Normal University, Nanjing, 210097, China

    XueQin An

  3. Department of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China

    WeiGuo Shen

Authors
  1. HongLan Cai
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  2. XueQin An
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  3. WeiGuo Shen
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Corresponding author

Correspondence to XueQin An.

Additional information

Supported by the National Natural Science Foundation of China (Grant Nos. 20673059, 20273032, 20473035 and 20573056), the New Technique Foundation of Jiangsu Province, China (Grant No. BG-2005041) and the Special Sustentation Fund of Nanometer Technology of Shanghai City, China (Grant No. 0652nm010)

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Cai, H., An, X. & Shen, W. Effects of the dispersed droplet sizes on the critical behavior of pseudobinary microemulsion. Chin. Sci. Bull. 52, 1139–1141 (2007). https://doi.org/10.1007/s11434-007-0171-7

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  • DOI: https://doi.org/10.1007/s11434-007-0171-7

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