A W/O microemulsion was prepared with Span80-PS (petroleum sulfonate) as complex emulsifier,isopropanol as cosurfactant and kerosene as oil phase.The optimal constituents of microemulsion were found from pseudoternary phase diagrams:the mass ratio of Span80 to PS was 4:1 and complex surfactant to cosurfactant was 1:1.The Fe3O4 magnetic fluid was obtained by one-step method with the W/O microemulsion as mieroreactor to synthesize magnetic nanoparticles (reaction temperature was 30℃ and reaction time was 5 h) and kerosene as carder liquid.The magnetic fluid was investigated by TEM,XRD and fluorescence microscope.The magnetism was determined by Gouy magnetic balance,The average particle size of Fe3O4 was 7.4 nm,and magnetic particles were well-dispersed.The stable Fe3O4 magnetic fluid with good magnetism may be produced by one-step method in the W/O microemulsion.Accordingly,the traditional preparation method of magnetic fluid can be simplified greatly.
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机译:The preparation and the in-vitro pharmacodynamics study of the intracapsular sustained-release preparations for the prevention of posterior capsule opacification
机译:神父市政厅,宗教自由和天主教传统。真实地狱中的均一教义发展案例,阿巴耶·圣马德琳(Les Barroux),第二版。修订和扩充,1998年,T。I,系统学,第一期:Preparations,LX + 466页。第二期:成果,278页。 T. II,编年史,总理专着:资料来源,第594页。第二期:所附文件,430页。 T. III,按字母顺序,第一期:参考书目,552页。第二期:一般分析索引,540页。