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Citation: Shen Xing-Hai, Wang Wen-Qing, Wang Shuang, Li Gai-Ling, Gao Hong-Cheng. The Structural Parameters of P507(K)-alcohol-heptane-water Microemulsions[J]. Acta Physico-Chimica Sinica, ;1994, 10(07): 585-590. doi: 10.3866/PKU.WHXB19940703 shu

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

1.
Department of Technical Physics, Peking University, Beijing 100871

Received Date: 5 January 1993
Available Online: 15 July 1994

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 R_w, effective radius of particle R_e, length of interface l, average aggergation number n, total number of particles N_d and total interfacial area of dispersed phase A_d. The results show that R_w 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 P507(K) was calculated to be about 0.58 nm. The maximum numbers of water molecules associating with K~+ in pentanol, hexanol, isopentanol and 2-ethyl butanol-1 containing microemulsions were estimated to be about 5.83, 5.31, 4.95 and 4.28, respectively.
- Microemulsion,
- Dilution method,
- Sphere model
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