Study on the Phase Behavior of Supercritical CO2/Dynol-604/Water System and Solubilization of Methyl Orange in the Microemulsions  

作　　者：JunChengLIU JianLingZHANG 等 

机构地区：[1]KeyLabforcolloidandinterfacechemistryofStateEducationMinistry,ShandongUniversity,Jinan250100 [2]CenterforMolecularScience,InstituteofChemistry,ChineseAcademyofSciencesBeijing10008

出　　处：《Chinese Chemical Letters》2002年第1期87-90,共4页中国化学快报（英文版）

基　　金：The authors are grateful to the National Natural Science Foundation of China and Ministry of Science and Technology for the financial support(29725308,G20000781).

摘　　要：It was found that Dynol-604, a non-fluorous and no silicon-containing nonionic surfactant, was soluble in supercritical (SC) CO2. The phase behavior of SC CO2/Dynol-604/water system was studied. The results showed that one-phase water-in-CO2 microemulsions could be formed. The solubilization of methyl orange in the microemulsions proved further the existence of water domain in the microemulsions.It was found that Dynol-604, a non-fluorous and no silicon-containing nonionic surfactant, was soluble in supercritical (SC) CO2. The phase behavior of SC CO2/Dynol-604/water system was studied. The results showed that one-phase water-in-CO2 microemulsions could be formed. The solubilization of methyl orange in the microemulsions proved further the existence of water domain in the microemulsions.

关 键 词：Supercritical carbon dioxide SURFACTANT MICROEMULSIONS solvatochromic probe. 

分 类 号：O652.3[理学—分析化学] O613.[理学—化学]