| Studies on Middle-Phase Microemulsions of Green Surfactant n-Dodecyl Polyglucoside C12G1.46 |
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| 作者姓名： | 柴金岭 张高勇 |
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| 作者单位： | [1]ChemistryDepartmentShandongNormalUniversity,Jinan,Shandong250014,China [2]KeyLaboratoryforColloidandInterfaceChemistryofStateEducationMinistry,ShandongUniversity,JinanShandong250100,Ch |
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| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationofChina (Nos .2 990 30 0 6and 2 99730 2 3) |
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| 摘 要： | The three-phases behavior in the quaternary stsem of n-dodecyl polyglucoside C12G1.46/1-butanol/cyclohexane/water has been studied at 40℃ in terms of the variables γ and δ.Increasing δ at constant γcauses a phase inversion from an oil-in-water microemulsion in contact with excess oil(winsor I or 2) to a water-in-oil microemulsion in contact with excess water (winsor Ⅱor 2)via a middle-phase microemulsion in contact with excess oil and water(winsor Ⅲor 3).By taking into account the different solubilities of alkyl polyglucoside and 1-butanol in the oil phase,the composition of the hydrophile-lipophile balanced interfacial film in the middle of the three-phase body can be calculated.The effects of different oils and aqueous media on the phase behavior and on the composition of the interfacial film and the efficiency for alkyl polyglucoside to make equal weights of water and oil to a single phase were investigated.It was found that the oil molecules with small molecular volumes can improve the solubilizing efficiency of the surfactant to form single-phase microemulsion.In inorganic salt(NaCl) and acid(HCl) solutions,less 1-butanol is needed than that in alkali(NaOH) solution to form middle-phase microemulsion.
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| 关 键 词： | 中间相微乳液 C12G1.46 烷基聚葡糖苷 相图 界面薄膜 表面活性剂 氯化钠溶液 盐酸 氢氧化钠 |
Studies on Middle-Phase Microemulsions of Green Surfactant n-Dodecyl Polyglucoside C_(12)G_(1.46) |
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| CHAI,Jin-Ling,a,b WU,Chang-Ju a LI,Gan-Zuo bZHANG,Gao-Yong b a Chemistry.Studies on Middle-Phase Microemulsions of Green Surfactant n-Dodecyl Polyglucoside C12G1.46[J].Chinese Journal of Chemistry,2003,21(1):25-29. |
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| Authors: | CHAI Jin-Ling a b WU Chang-Ju a LI Gan-Zuo bZHANG Gao-Yong b a Chemistry |
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| Institution: | CHAI,Jin-Ling,a,b WU,Chang-Ju a LI,Gan-Zuo bZHANG,Gao-Yong b a Chemistry Department,Shandong Normal University,Jinan,Shandong 250014,China bKey Laboratory for Colloid and Interface Chemistry of State Education Ministry,Shandong University,Jinan,Shandong 250100,China |
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| Abstract: | The three‐phase behavior in the quaternary system of n‐dodecyl polyglucoside C12G1.46/1‐butanol/cyclohexane/water has been studied at 40°C in terms of the variables γ and δ. Increasing δ at constant γ causes a phase inversion from an oil‐in‐water microemulsion in contact with excess oil (winsor I or 2) to a water‐in‐oil microemulsion in contact with excess water (winsor II or 2?) via a middle‐phase microemulsion in contact with excess oil and water (winsor III or 3). By taking into account the different solubilities of alkyl polyglucoside and 1‐butanol in the oil phase, the composition of the hydrophile‐lipophile balanced interfacial film in the middle of the three‐phase body can be calculated. The effects of different oils and aqueous media on the phase behavior and on the composition of the interfacial film and the efficiency for alkyl polyglucoside to make equal weights of water and oil to a single phase were investigated. It was found that the oil molecules with small molecular volumes can improve the solubilizing efficiency of the surfactant to form single‐phase microemulsion. In inorganic salt (NaCl) and add (HCl) solutions, less 1‐butanol is needed than that in alkali (NaOH) solution to form middle‐phase microemulsion. |
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| Keywords: | alkyl polyglucoside microemulsion phase diagram interfacial film |
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