P507(K)-醇-正庚烷-水四组分微乳液体系的结构参数  

The Structural Parameters of P507(K)-alcohol-heptane-water Microemulsions

作　　者：沈兴海[1] 王文清[1] 王爽 李改玲[1] 高宏成[1] 

机构地区：[1]北京大学技术物理系,北京100871

出　　处：《物理化学学报》1994年第7期585-590,共6页Acta Physico-Chimica Sinica

摘　　要：根据球状模型并结合稀释法求得了P507（K）-醇（正戊醇、正己醇、异戊醇、异己醇）-正庚烷-水四组分微乳液的结构参数：水内核半径Rw、颗粒有效半径Re、界面层厚度l、颗粒平均聚集数、颗粒总数Nd以及分散相所占总界面面积Ad。结果表明，Rw与ω（水与表面活性剂摩尔数之比）成线性关系。由直线的截距还求得P507（K）极性头的水化层厚度为5．8A。The structural parameters of microemulstions composed of P507(K)-alcohol(pentanol, hexanol, iso-pentanol, 2-ethyl butanol-1) were calculated based on sphere model and dilution method. The structural parameters include irmer water radius Rw, effective radius of particle Re, length of interface l, average aggergation number n, total number of particles Nd and total interfacial area of dispersed phase Ad. The results show that Rw has linear relationship with ω (the molax ratio of water to surfactant).According to the intercept, the water solvation thickness of the polar head of P57(K) wascalculated to be about 5.8A. The maximum unmbers of water molecules associating with K+ in pentanol、 hexanol、 isopentanol and 2-ethyl butanol-1 containing microemulstions were estimated to be about 5.83 、5.31、 4.95 and 4.28, respectively.

关 键 词：微乳液 结构参数 膦酸 醇 正庚烷 

分 类 号：O648.23[理学—物理化学]