| SDS/BA/H2O体系的扩散系数与结构特性 |
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| 引用本文： | 刘天晴,郭荣,于卫里,沈明. SDS/BA/H2O体系的扩散系数与结构特性[J]. 物理化学学报, 1997, 13(5): 401-406. DOI: 10.3866/PKU.WHXB19970504 |
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| 作者姓名： | 刘天晴 郭荣 于卫里 沈明 |
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| 作者单位： | Department of Chemistry,Techer's College of Yangzhou University,Yangzhou 225002 |
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| 基金项目： | 国家教委优秀青年教师基金 |
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| 摘 要： | 在无探针条件下，用电化学方法测定了ＳＤＳ／ＢＡ／Ｈ２Ｏ三组分体系的扩散系数和扩散活化能。结果表明，Ｌ１区域由Ｏ／Ｗ结构微乳液与油、水双连续结构微乳液两个小区域组成，并不是单一的Ｏ／Ｗ区域。在Ｏ／Ｗ区域内，微乳液以液滴状态存在，具有较好的扩莠性能和较小的扩散活化能；在ＢＩ区域，水与ＢＡ同作为连续相与被增溶相存在，缔合体系呈网络结构，扩散性能较低，扩莠活化能较大。
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| 关 键 词： | 循环伏安法 扩散系数 活化能 微乳液 胶束 |
| 收稿时间： | 1996-08-26 |
| 修稿时间： | 1997-01-18 |
Diffusion Coefficient and Structure Properties of SDS/ BA/ H_2O System |
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| Liu Tianqing, Guo Rong, Yu Weili, Shen Ming. Diffusion Coefficient and Structure Properties of SDS/ BA/ H_2O System[J]. Acta Physico-Chimica Sinica, 1997, 13(5): 401-406. DOI: 10.3866/PKU.WHXB19970504 |
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| Authors: | Liu Tianqing Guo Rong Yu Weili Shen Ming |
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| Affiliation: | Department of Chemistry,Techer's College of Yangzhou University,Yangzhou 225002 |
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| Abstract: | Micelle diffusion coefficient and diffusion activation energy of SDS/BA/H2O system aredctermined by electrochemical methods without any probe. The results show that L1 area is not asingle O/W microemulsion, it consists of two small regions - O/W microemulsion and oil-waterbicontinuous microemulsion,. The microemulsion exists in liquid drop in O/W microemulsion andin net-structure in oil-water bicontinuous microemulsion. The diffusion property is better anddiffusion activation energy smaller in the former than in the latter. |
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| Keywords: | Cyclic voltammogram Diffusion coefficient Activation energy Microemulsion Micelle |
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