利用德国BASF公司生产的Pluronic型和PluronicR型两类嵌段聚合物制备聚合物反胶团萃取氨基酸 (L -苯丙氨酸和L -异亮氨酸 ) ,探讨了聚合物反胶团对氨基酸的萃取平衡特性。实验表明 ,聚合物反胶团对氨基酸的萃取平衡时间与纯有机溶剂的物理萃取相比差别很小 ,溶质在反胶团外壳部分与其内部水池间的平衡分配系数K都普遍较大 ,另外 ,当氨基酸水溶液的pH值接近等电点时 ,反胶团萃取达到最佳效果。通过理论分析得到如下推断 :聚合物反胶团对两亲性氨基酸的增溶主要在其外壳部分 ,很可能是包裹在聚氧丙烯外壳内或缠绕在聚氧丙烯链之间 ;亲油作用和氢键作用是聚合物反胶团萃取的主要推动力 The polymer reverse micelle extraction of amino acids (L - phenylalanine and L - isoleucine) was carried out by using Pluronic and PluronicR two types of block polymers produced by BASF in Germany. The effects of polymer reverse micelle on amino acid The extraction balance characteristics. Experiments show that the reverse extraction time of amino acids in polymer reversed micelles is very small compared with the physical extraction of pure organic solvents. The equilibrium partition coefficient K of solute in the shell of the reverse micelle and its internal tank is generally large. In addition, When the amino acid aqueous solution pH close to the isoelectric point, the reverse micelle extraction to achieve the best results. The following conclusions can be drawn from theoretical analysis: The solubilization of amphiphilic amino acids by the polymer reverse micelles is mainly in the shell part, which is likely to be wrapped in polyoxypropylene shell or entangled between polyoxypropylene chains. The lipophilicity and Hydrogen bonding is the main driving force of polymer reverse micelle extraction