荧光探针法研究乳化剂对硅/丙核壳乳液聚合行为的影响  

Study on the Effect of Emulsifiers on the Polymerization of Organosilicon-Acrylate Core-Shell Emulsion Using Fluorescence Probe Technique

作　　者：甘孟瑜[1] 李小梅[1] 马利[1] 潘登[1] 

机构地区：[1]重庆大学化学化工学院,四川重庆400030

出　　处：《影像科学与光化学》2009年第3期182-189,共8页Imaging Science and Photochemistry

摘　　要：用荧光探针(芘)法测定了十二烷基硫酸钠(SDS)、烷基酚聚氧乙烯醚(OP-10),以及复配乳化剂的临界胶束浓度(CMC),并首次把荧光探针技术应用到硅/丙核壳乳液聚合反应的研究中.利用芘的I1/I3值,结合胶束微环境的极性变化规律和乳液聚合机理,探讨了乳化剂对聚合反应的影响.结果表明,荧光探针(芘)法可用于研究硅/丙乳液的聚合行为和确定乳化剂配比.通过粒径分析、透射电镜(TEM)对产品的结构进行了表征.The critical micelle concentration （CIVIC） of sodium dodecyl sulfate （SDS）, alklphenol ethoxylates（OP-10） and composite emulsifiers were determined using fluorescence probe technique. The polymerization of organosilion-acrylate core-shell emulsion was studied by using this technique for the first time. The effect of emulsifier＇ s micellization in the polymerization of organosilion-acrylate core-shell emulsion was discussed by the I1/I3 values of pyrene and the variation of polarity of micelle micro-environment and emulsion polymerization mechanism. It is suggested that the fluorescence probe （pyrene） technique can be used to study the polymerization process of organosilion-acrylate core-shell emulsion and the determination of optimal emulsifier ratio. The properties of the emulsion were characterized by particle size analysis,transmission electron microscope （TEM）.

关 键 词：荧光探针 乳化剂 临界胶束浓度 硅/丙核壳乳液 

分 类 号：TQ316.334[化学工程—高聚物工业]