2010•Journal of Oleo ScienceOpen access

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

Yohji Nakatsuji, Shingo Fujimoto, Misako Nakamura, Masahiro Muraoka

Abstract

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

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Key concepts: Ionophore, Chemistry, Membrane, Selectivity, Alkali metal, Alcohol, Phase (matter), Inorganic chemistry