Dilution method study on the interfacial composition and structural parameters of water/C-12-EOx-C(12 center dot)2Br/n-hexanol/n-heptane microemulsions: Effect of the oxyethylene groups in the spacer

作者：Zheng Ou; Zhao Jian Xi^*; Yan Hua; Gao Shao Kang

来源：Journal of Colloid and Interface Science, 2007, 310(1): 331-336.

DOI：10.1016/j.jcis.2007.01.056

• C-12-EOx-C-12 center dot 2Br homologs
• n-hexanol
• dilution method
• interfacial composition of the w/o microemulsion
• structural parameters

The interfacial composition and the structure of the water/C-12-EOx-C-12.2Br/n-hexanol/n-heptane microemulsion have been investigated by the dilution method. The results showed that C-12-EOx-C-12.2Br formed a stable water/oil microemulsion with the assistance of n-hexanol. Owing to the relatively large size of the head group, more n-hexanol molecules are populated on the droplet surface than in the C-12-2-C-12. 2Br system. The radius of the water pool of the C-12-EO3-C-12.2Br system is not as sensitive to W-o as in the C-12-2-C-12.2Br system. Another feature of the present system is that its droplet size is considerably smaller than that of the C-12-2-C-12.2Br system, and also those of the CPC and CTAB systems at relative high water content. This provides a potential application for the synthesis of nanoparticles with small size.

• 出版日期2007-6-1
• 单位福州大学