【摘要】 采用 3种典型非离子表面活性剂 (Tween80、Tween2 0和TritonX 1 0 0 ) ,对 4种典型多环芳烃萘 (naphtha lene)、菲 (phenanthrene)、芴 (fluorene)和芘 (pyrene)进行了溶解特性研究 .结果表明 ,非离子表面活性剂对多环芳烃具有较好的增溶效果 ,在浓度大于临界胶束浓度 (CMC)时 ,多环芳烃的溶解度与表面活性剂浓度成正比例线性相关 .通过质量溶解率 (WSR)的比较 ,确定 3种非离子表面活性剂对多环芳烃的增溶效果为TritonX 1 0 0 >Tween80 >Tween2 0 ,与其HLB值呈负相关 .在非离子表面活性剂溶液中 ,多环芳烃的正辛醇 水分配系数 (Kow)与其胶束 水分配系数 (Km)呈现良好的线性相关关系 .更多还原

【Abstract】 Using three typical nonionic surfactants (Tween80, Tween20 and Triton X-100), the solubilization of four kinds of polycyclic aromatic hydrocarbons (PAHs) e.g. naphthalene、phenanthrene、fluorene and pyrene, were characterized. It was found that not only nonionic surfactants could enhance the solubilization of PAHs greatly in the range of concentration above critical micellar concentration (CMC), but also the solubility had the linear relationship with the concentration of nonionic surfactants. The effect of solubilization enhancement at three surfactants was Triton X-100 >Tween80>Tween20. In the three nonionic surfactants solution the micelle-aqueous phase partitioning coefficient (K m) had very good linear proportional to the octanol-water partitioning coefficient (K ow) for the four tested PAHs.更多还原