Functions of Acyclic Poly(ethylene Oxide) Homologs: Acceleration of Nucleophilic Reactions and Selective Ion Transport through Membranes |
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| Authors: | Noboru Yamazaki Akira Hirao Seiichi Nakahama |
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| Institution: | Department of Polymer Science , Tokyo Institute of Technology , Meguro-ku, Tokyo, Japan , 152 |
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| Abstract: | The acceleration effect of poly(ethylene oxide) on nucleophilic reactions was investigated. The enhancement of the reaction rate was interpreted by the cooperative solvation of alkali metal ions with ethereal oxygens of PEO resulting in active nucleophilic anions. In relation to the complex formation of alkali metal ions with PEO, the oligo(ethylene oxide) derivatives were prepared as the synthetic ionophores, which were able to transport alkali metal ions selectively through a liquid membrane against the alkali metal ion concentration. |
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| Keywords: | polymer blends viscosity ultrasonic velocity refractive index miscibility |
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