影像科学与光化学 ›› 2009, Vol. 27 ›› Issue (3): 182-189.DOI: 10.7517/j.issn.1674-0475.2009.03.182

• 研究论文 • 上一篇    下一篇

荧光探针法研究乳化剂对硅/丙核壳乳液聚合行为的影响

甘孟瑜, 李小梅, 马利, 潘登   

  1. 重庆大学, 化学化工学院, 四川, 重庆, 400030
  • 收稿日期:2008-11-18 修回日期:2009-01-08 出版日期:2009-05-23 发布日期:2009-05-23
  • 通讯作者: 李小梅

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

GAN Meng-yu, LI Xiao-mei, MA Li, PAN Deng   

  1. College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, Sichuan, P.R.China
  • Received:2008-11-18 Revised:2009-01-08 Online:2009-05-23 Published:2009-05-23

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.

关键词: 荧光探针, 乳化剂, 临界胶束浓度, 硅/丙核壳乳液

Abstract: The critical micelle concentration(CMC) 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).

Key words: florescence probe technique, emulsifier, CMC, organosilion-acrylate core-shell emulsion

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