| 醇对正负离子表面活性剂双水相性质的影响 |
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| 引用本文： | 滕弘霓,王利. 醇对正负离子表面活性剂双水相性质的影响[J]. 化工学报, 2004, 55(2): 301-304 |
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| 作者姓名： | 滕弘霓 王利 |
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| 作者单位： | 青岛科技大学化学与分子工程学院,山东,青岛,266042;青岛科技大学化学与分子工程学院,山东,青岛,266042 |
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| 摘 要： | The effect of alcohol on the aqueous two-phase system properties of SDS/CTAB/H2O/Na2SO4 system was studied by the pseudo ternary phase diagram. The electrostatic forces (both attraction and repulsion) between cationic surfactant and anionic surfactant decreased because of the interaction of alcohol hydroxyl group and surfactant polar group. As a result, the phase area width of aqueous two-phase system increased. Long chain alcohol (more than five carbonatoms), which was in high concentration in the SDS/CTAB/H2O/Na2SO4) system, caused the anionic aqueous two-phase system area to vanish and the cationic aqueous two-phase system area to become wider. The CTAB rich phase turned from top phase to bottom phase.
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| 关 键 词： | 正负离子表面活性剂混合物 双水相 醇 相图 |
| 文章编号： | 0438-1157(2004)02-0301-04 |
| 收稿时间： | 2002-12-31 |
| 修稿时间： | 2003-8-7 |
EFFECT OF ALCOHOL ON AQUEOUS TWO-PHASE SYSTEM PROPERTIES OF SDS/CTAB/H2O/Na2SO4 SYSTEM |
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| TENG Hongni,WANG Li. EFFECT OF ALCOHOL ON AQUEOUS TWO-PHASE SYSTEM PROPERTIES OF SDS/CTAB/H2O/Na2SO4 SYSTEM[J]. Journal of Chemical Industry and Engineering(China), 2004, 55(2): 301-304 |
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| Authors: | TENG Hongni WANG Li |
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| Abstract: | The effect of alcohol on the aqueous two-phase system properties of SDS/CTAB/H 2O/Na 2SO 4 system was studied by the pseudo ternary phase diagram. The electrostatic forces (both attraction and repulsion) between cationic surfactant and anionic surfactant decreased because of the interaction of alcohol hydroxyl group and surfactant polar group. As a result, the phase area width of aqueous two-phase system increased. Long chain alcohol (more than five carbonatoms), which was in high concentration in the SDS/CTAB/H 2O/Na 2SO 4 system, caused the anionic aqueous two-phase system area to vanish and the cationic aqueous two-phase system area to become wider. The CTAB rich phase turned from top phase to bottom phase. |
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| Keywords: | cationic surfactant and anionic surfactant mixtures aqueous two-phase system alcohol phase diagram |
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