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author:

Zheng, O (Zheng, O.) [1] (Scholars:郑欧) | Zhao, JX (Zhao, JX.) [2] (Scholars:赵剑曦) | Fu, XM (Fu, XM.) [3]

Indexed by:

Scopus SCIE PKU CSCD

Abstract:

The critical reverse micelle concentrations of quaternary ammonium Gemini surfactants C-12-s-C-12 center dot 2Br (s=2, 3, 4, 5, 6, 8, 12) in n-heptane (cmc(w)) have been determined by water solubilization method. These values are smaller than the critical micelle concentration (cmc(aq)) of them in aqueous solution, where C-12-s-C-12 - 2Br forms normal micelles. The cmc(w) as a function of s goes through a maximum at s=4, which is similar to the variation regularity of cmc(aq) with s. The saturation amounts of water solubilized in the reverse micelles measured by both water solubilization method and conductivity method show a maximum at about s=5. This is attributed to the change of folded conformation of the spacer chain.

Keyword:

heptane/hexanol solution quaternary ammonium Gemini surfactants reverse micelle solubilizing water

Community:

  • [ 1 ] Fuzhou Univ, Dept Appl Chem, Coll Chem & Chem Engn, Fuzhou 350002, Peoples R China

Reprint 's Address:

  • 赵剑曦

    [Zhao, JX]Fuzhou Univ, Dept Appl Chem, Coll Chem & Chem Engn, Fuzhou 350002, Peoples R China

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Source :

ACTA PHYSICO-CHIMICA SINICA

ISSN: 1000-6818

CN: 11-1892/O6

Year: 2006

Issue: 3

Volume: 22

Page: 322-325

0 . 5 6 1

JCR@2006

1 0 . 8 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:4

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 12

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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