The surface activity and solubilization of anionic-cationic surfactants

被引：6
|
作者：
Li, XG
Zhang, GX
Zhang, MX
Wu, GQ
机构：
[1] Southwest Agricultural University
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1996年 / 111卷 / 03期
关键词：
cationic-anionic surfactants; solubilization; surface activity; viscosity;
D O I：
10.1016/0927-7757(95)03507-9
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The surface activity of the mixed surfactants C12H25(OC2H4)(7)SO4Na-C12H25N(C2H4OH)(3)Cl (C(12)E(7)S-C(12)NEt(3)) and C8H17C6H4(OC2H4)(10)SO4Na(C-8 Phi E(10)S)-C(12)NEt(3) is much higher than those of C(12)E(7)S, C(12)NEt(3) and C-8 Phi E(10)S, respectively. With the mixing ratio approaching 1:1, the solubilization of hexanol by aqueous solutions of C(12)E(7)S-C(12)NEt(3) or C(12)NEt(3)-C-8 Phi E(10)S decreases, giving a V-shaped curve. The solubilization of polar compounds is directly proportional to the square of the amount of micellar charge. With the mixing ratio approaching 1:1, the solubilization of hexane increases, giving a ''arc'' shaped curve. The viscosity of aqueous solutions of C(12)E(7)S-C(12)NEt(3) or C-8 Phi E(10)S-C(12)NEt(3) increases with a mixing ratio approaching 1:1, giving an inverted-V-shaped curve.
引用
收藏
页码：161 / 166
页数：6
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