| Transports of K^＋, Ca^2＋ Ions in Liquid Membrane with Calixarene Derivatives as Carriers |
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| 引用本文： | 李磊,朱琪琪,咸春颖,郑利民.Transports of K^＋, Ca^2＋ Ions in Liquid Membrane with Calixarene Derivatives as Carriers[J].东华大学学报(英文版),2006,23(3):67-70. |
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| 作者姓名： | 李磊 朱琪琪 咸春颖 郑利民 |
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| 作者单位： | [1]College of Chemistry and Chemical Engineering.Donghua University , shanghai 201620 [2]The Fourteenth High School of Huainan,Anhui232001 |
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| 摘 要： | A few derivatives of calixarenes have been synthesized and characterized by IR, ^1H NNtR, 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 p- tert-butylcalix4]arene is the best carrier of calcium ion, compared with p-tert-calix4]arene（n = 4, 6, 8）. The ptert-butylcalix4]arene acid is better than p-tert-butylcalix 4]arene. The calixr43crown 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^＋ , Ca^2＋ 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 calixn] crowns. It might be interpreted as the result of their different mechanisms.
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| 关 键 词： | 液膜输运 钾离子 钙离子 衍生物 |
| 收稿时间： | 2005-11-24 |
Transports of K+, Ca2+ Ions in Liquid Membrane with Calixarene Derivatives as Carriers |
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| 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].Journal of Donghua University,2006,23(3):67-70. |
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| Authors: | LI Lei ZHU Qi-qi XIAN Chun-ying ZHENG Li-min |
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| 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 p-tert-butylcalix4]arene is the best carrier of calcium ion, compared with p-tert-calix4]arene(n=4, 6, 8). The p-tert-butylcalix4]arene acid is better than p-tert-butylcalix4]arene. The calix4]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~+,Ca~(2+) 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 calixn]arene derivatives act as carrier. But it is not the case for the calixn]crowns. It might be interpreted as the result of their different mechanisms. |
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| Keywords: | calixarene liquid membrane transport electron-effect |
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