| 十二烷基磺酸钠/异辛烷/正构醇/水微乳状液的相行为及其结构转变的研究 |
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| 引用本文： | 杨根生,施介华,李景华,王普,姚善泾. 十二烷基磺酸钠/异辛烷/正构醇/水微乳状液的相行为及其结构转变的研究[J]. 中国化学工程学报, 2002, 10(6): 670-672 |
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| 作者姓名： | 杨根生 施介华 李景华 王普 姚善泾 |
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| 作者单位： | CollegeofPharmaceuticalSciences,ZhejiangUniversityofTechnology,Hangzhou310032,China |
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| 基金项目： | Supported by the Natural Science Foundation of Zhejiang Province (No. 299018). |
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| 摘 要： | The forming mechanism of microemulsion of sodium dodecyl sulfonate.alcohols,water and isooctane was studied,with particular emphasis on the effect of molecular weight and concentration of alocohols.Phase diagram of the four components,alcohol, sodium dodecyl sulfonate,water and isooctane,was used as a means of study,through which the microemulsion regions were determined.Phase diagram of sodium dodecyl sulfonate/n-pentanol/isooctane/water system at km=2(km=Wn-pentanol/WSDS)is presented. The variation of conductivities of different microemulsion samples with water was measured.From the conductivities we investigated a change in structure from water droplets in oil(W/O)at low water content to liquid crystal at intermediate water content and a structure of oil droplets in water(O/W)at high water content.
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| 关 键 词： | 正构醇 十二烷基磺酸钠 异辛烷 水 相行为 微乳状液 结构转变 表面活性剂 |
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Phase Behavior and Structural Transitions in Sodium Dodecyl Sulfonate Microemulsions |
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| YANG Gensheng,SHI Jiehua,LI Jinghua,WANG Pu,YAO Shanjing. Phase Behavior and Structural Transitions in Sodium Dodecyl Sulfonate Microemulsions[J]. Chinese Journal of Chemical Engineering, 2002, 10(6): 670-672 |
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| Authors: | YANG Gensheng SHI Jiehua LI Jinghua WANG Pu YAO Shanjing |
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| Affiliation: | College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310032, China Department of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | The forming mechanism of microemulsion of sodium dodecyl sulfonate, alcohols, water and isooctane was studied, with particular emphasis on the effect of molecular weight and concentration of alcohols. Phase diagram of the four components, alcohol, sodium dodecyl sulfonate, water and isooctane, was used as a means of study, through which the microemulsion regions were deter-mined. Phase diagram of sodium dodecyl sulfonate/n-pentanol/isooctane/water system at km = 2 (km = Wn-pentanol / WSDS ) is presented. The variation of conductivities of different microemulsion samples with water was measured. From the conductivities we investigated a change in structure from water droplets in oil (W/O) at low water content to liquid crystal at intermediate water content and a struc-ture of oil droplets in water (O/W) at high water content. |
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| Keywords: | sodium dodecyl sulfonate alcohol microemulsion phase behavior conductivity |
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