Acta Chimica Sinica ›› 2002, Vol. 60 ›› Issue (4): 633-638. Previous Articles     Next Articles

Original Articles

W/O与O/W,W/O与双连续结构微乳液的界面电性质

刘天晴;魏逊;郭荣   

  1. 扬州大学理学院化学系,扬州(225002)
  • 发布日期:2002-04-15

Interfacial Electric Properties of W/O and O/W, W/O and Bicontinuous Microemulsions

Liu Tianqing;Wei Xun;Guo Rong   

  1. Department of Chemistry, Yangzhou University,Yangzhou(225002)
  • Published:2002-04-15

The results of voltammetry without any probe and capacitance measurement show that at the weight ratio of H_2O/n-C_5H_(11)OH = 50/50, when total SDS concentration is less than 3%, the upper phase takes on the W/O structure and the lower phase takes on the O/W structure. With the increase of the total SDS content, increase the amount of SDS at the interface, interfacial potential ΔE, interfacial capacitance C, and interfacial charge-transfer current i_p, while decreases the interfacial resistivity ρ_i; after SDS total content reaches 3%, the upper phase takes on the W/O structure and the lower phase takes on the bicontinuous structure, the changes of all the electric properties of the interface slow down.

Key words: VOLTAMMETRY, MICROEMUSION, CHARGE TRANSFER, ELECTRICAL RESISTIVITY, CAPACITANCE

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