东华大学学报（英文版）2006，Vol.23Issue(3)：67-70,4.
Transports of K+, Ca2+ Ions in Liquid Membrane with Calixarene Derivatives as Carriers
Transports of K+, Ca2+ Ions in Liquid Membrane with Calixarene Derivatives as Carriers
LI Lei 1ZHU Qi-qi 2XIAN Chun-ying 1ZHENG Li-min1
作者信息
- 1. College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201520
- 2. The Fourteenth High School of Huainan, Anhui 232001
- 折叠
摘要
Abstract
A few derivatives of calixarenes have been synthesized and characterized by IR, 1H NMR, thermal and elemental analysis. The transport of potassium or calcium ion through the liquid membrane, in which the derivatives act as carriers, has been studied. The electron-effect of the substituent on the upper rim of calixarene possesses important effect on the net transport of metal ions. The ptert-butylcalix[4]arene is the best carrier of calcium ion,compared with p-tert-calix[4]arene(n = 4, 6, 8). The ptert-butylcalix[4]arene acid is better than p-tert-butylcalix [4]arene. The calix[4]crown is the best carrier of calcium ions of all the carriers. The pH gradient between the source and receiving phase, and the concentration of K+, Ca2+ions in the source phase affect mainly transport. After the transport, the pH value of the source phase is found to be decreased, once the calix [n] arene derivatives act as carrier. But it is not the case for the calix[n] crowns. It might be interpreted as the result of their different mechanisms.关键词
calixarene/liquid membrane transport/electron-effectKey words
calixarene/liquid membrane transport/electron-effect分类
化学化工引用本文复制引用
LI Lei,ZHU Qi-qi,XIAN Chun-ying,ZHENG Li-min..Transports of K+, Ca2+ Ions in Liquid Membrane with Calixarene Derivatives as Carriers[J].东华大学学报（英文版）,2006,23(3):67-70,4.
