Supported Liquid Membrane Transport of Alkali Metal Cations by Monoazacryptand with a Partially Fluorinated Sidearm and the Corresponding Monoazacrown Ethers

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概要

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• Monoazacryptand [20.18.18] (1), monoaza-15-crown-5 (2a), and monoaza-18-crown-6 (2b) with a partially fluorinated sidearm were newly prepared and their transport abilities were estimated in a supported liquid membrane containing a mixture of 2- (perfluorohexyl) ethyl alcohol and 2- (perfluorooctyl) ethyl alcohol. In competitive passive transport of K+, Na+, and Li+ under neutral conditions, the K+ selectivity increased in the order: ionophore 2a<ionophore 2b<ionophore 1; whereas, the transport velocity increased in the order: ionophore 2a<ionophore 1<ionophore 2b. On the other hand, only ionophore 1 successfully transported K+ in the transport from the neutral source phase to the acidic receiving phase. This result was reasonably explained by considering the excellent K+ complexing ability of monoazacryptand (1) in comparison with that of monoazacrown ethers (2a and 2b).

• 日本油化学会の論文

著者

• MURAOKA Masahiro

  Department of Applied Chemistry, Faculty of Engineering, Osaka University

• Nakatsuji Yohji

  Department Of Applied Chemistry Faculty Of Engineering Osaka Institute Of Technology

• Fujimoto Shingo

  Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology

• Nakamura Misako

  Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology

• Muraoka Masahiro

  Department Of Applied Chemistry Faculty Of Engineering Osaka Institute Of Technology

• Nakamura Misako

  Department Of Applied Chemistry Faculty Of Engineering Osaka Institute Of Technology

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