杯[4]芳烃对金属离子的液膜传输  

Liquid Membrane Transport of Metal Ions by p-tert-butyl-calix[4]arene and its Derivative

作　　者：史春越[1] 

机构地区：[1]沈阳化工学院应用化学学院,辽宁沈阳110142

出　　处：《沈阳化工学院学报》2005年第2期150-153,共4页Journal of Shenyang Institute of Chemical Technolgy

摘　　要：　通过杯芳烃衍生物的识别作用可以实现对金属离子的选择性液膜传输.对比研究对叔丁基杯[4]芳烃和四乙酰氧基对叔丁基杯[4]芳烃对不同金属离子的液膜传输行为.发现四乙酰氧基对叔丁基杯[4]芳烃对Ag+有较高的传输性能,并重点考察不同因素(源相与吸收相之间的pH梯度、离子浓度)对传输能力的影响.初步探讨杯[4]芳烃及其衍生物作为离子载体的传输规律及传输机理.Selective transport of metal ions across liquid membrane can be achieved by using calixarene derivatives with recognition groups.In this work, %p%-tert-butyl-calixarene and tetra-acetoxy %p%-tert-butyl-calixarene were examined comparatively for the transport of different metal ions.It was found that tetra-acetoxy %p%-tert-butyl-calixarene transported efficiently Ag^+. The effects of the pH gradient between the source phase and the receiving phase, and ion concentration were studied. The transport process and transport mechanism by using calixarene and its derivative as carriers were briefly discussed.

关 键 词：杯[4]芳烃 金属离子 液膜传输 

分 类 号：O622[理学—有机化学]