介电常数法探讨微乳液对显色反应的增敏作用

STUDIES ON THE MECHANISM OF MICROEMULSION SENSITIZING EFFECT ON COLOR REACTION BY DIELECTRIC CONSTANT

通过紫外分光光度法测定显色剂水杨基荧光酮（ＳＡＦ）在微乳液及胶束介质中的平均有效介电常数Ｄ和分配系数ＫＤ，探讨了显色剂在介质中所处的微环境和增溶量．试验结果表明，显色剂ＳＡＦ在微乳液中较在相应的胶束中有较低的平均有效介电常数和较高的分配系数。

The UV spectrophotometric method is applied to study the dielectric constant D and distribution coefficient K D of the color reagent SAF in the microenvironment of microemulsion or micelle. The color reagent SAF has lower D and higher K D in microemulsion than that in micelle. The experimental results show microemulsion has more synergic sensitizing than micelle has.