Noncyclic polyethers exhibiting lithium ion selectivity have been synthesized. Their competitive alkalimetal-ion transport through liquid membranes has been investigated, and the influence of their structures on the rates and selectivities of cationtransport has been demonstrated. It has been found that the introduction of the oxytrimethylene chain on the polyethers is significant for the appearance
Synthetic Polyether Dicarboxylic Acids Exhibiting Lithium Ion-Selective Transport
作者:Kazuhisa Hiratani、Kazuhiro Taguchi
DOI:10.1246/bcsj.60.3827
日期:1987.11
Polyether dicarboxylic acid carriers with several alternate units of oxytrimethylene and oxy-o-phenylene groups have been synthesized. They exhibit lithium ion selectivity in the competitive cation transport among lithium, sodium, and potassium ions through liquid membranes. On the basis of the cation extraction and the spectroscopic behavior, it is proposed that these carriers form a coiled structure into which the lithium ion becomes selectively incorporated to exhibit lithium ion-selective transport.