化学学报 ›› 2000, Vol. 58 ›› Issue (4): 374-377. 上一篇    下一篇

研究论文

正戊醇对CTAB/KBr胶束体系流变性的影响

张为灿;李干佐;沈强;卢拥军   

  1. 山东大学教育部胶体与界面化学重点实验室;石油勘探开发研究院廊坊分院
  • 发布日期:2000-04-15

The effect of n-pentanol on the rheological properties of CTAB/KBr micellar systems

Zhang Weican;Li Ganzuo;Shen Qiang;Lu Yongjun   

  • Published:2000-04-15

报道了正戊醇对CTAB/KBr胶束体系流变性的影响。结果表明:在0.01mol.dm^-^3CTAB(十六烷基三甲基溴化铵)溶液中,正戊醇促使CTAB/KBr胶束体系的粘度增大至一最大值,然后降低在0.08mol.dm^-^3CTAB/KBr的溶液中,正戊醇能促使该胶束体系呈现粘弹性。根据动态荧光法测定的胶束聚集对以上结果进行了解释。

关键词: 戊醇, 溴化十六烷基三甲铵, 溴化钾, 粘度, 荧光分光光度法, 流变性能

The effect of n-pentanol on the rheological properties of CTAB/KBr micellar systems has been investigated. The addiion of n-pentanol induces the viscosity of CTAB/KBr micellar system to go through a marked maximum in 0.01 mol.dm^-^3CTAB/KBr solution. In 0.08 mol.dm^- ^3CTAB/KBr/0.08mol.dm^-^3 solution, a small amount of n-pentanol can make CTAB/KBr system have viscoelasticity, when the n-pentanol concentration increases continuously, the viscoelasticity of this micellar system decreases. Finally, we discuss these results in terms of the micellar aggregation number determined from time resolved fluorescence spectrophotometry.

Key words: PENTANOL, POTASSIUM BROMIDE, VISCOSITY, FLUOROSPECTROPHOTOMETRY, RHEOLOGICAL PROPERTY

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