【摘要】 确定了十六烷基三甲基溴化铵 ( CTAB) /环己醇 /水三组分体系的 O/ W、W/ O和油、水双连续结构区域 ,求得环己醇在 CTAB胶束相和水相之间的分配系数 K =1 38.9;研究了 CTAB/环己醇 /水体系微乳液对甲苯的增溶作用以及甲苯对微乳液稳定性的影响 ,结果表明微乳液的稳定性随甲苯含量的增加而降低 ;以荧光探针法测定了 CTAB胶束微环境的极性和甲苯在 O/ W微乳液液滴相与水连续相之间的分配系数 ( Kx=1 .382× 1 0 3 ) ,并计算出甲苯从水相转移到 O/ W微乳液液滴相的标准转移自由能变化 ΔG°t =-1 7.93k J· mol-1.更多还原

【Abstract】 The O/W, W/O and O, W bicontinuous structure zones in CTAB/cyclohexanol/water system are sorted. In the O/W region, the distribution coefficient of cC 6H 11OH between micelle and water phase is acquired (K=138.9). The solubilization of toluene in CTAB/cC 6H 11OH/H 2O microemulsion system is studied and the effect of toluene on the stability of microemulsion is investigated,with the conclusion that the stability of microemulsion decreases as the content of toluene increases. The fluorescence probing method is adopted to measure the micropolarity of the probe environment in CTAB micelle and the distribution coefficient of toluene between O/W microemulsion and water phase (K x=1.382×10 3). The change of standard free energy (ΔG° t=-17.93 kJ·mol -1) for toluene to transfer from water phase to O/W microemulsion is also calculated.更多还原