Synthesis of lipophilic acyclic diionizable polyethers and selective transport of alkaline-earth cations in bulk liquid membrane system

Jong Seung Kim, Moon Hwan Cho, Sang Chul Lee, Yong I. Lee, Wonbo Sim, Nam Sook Cho

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Selective transport of alkaline-earth cations in a bulk liquid membrane system by lipophilic acyclic polyether dicarboxylic acids is reported. Introduction of proton-ionizable groups into such polyethers shows a distinct advantage over neutral macrocycles in that transfer of a metal ion into an organic medium does not require concomitant transport of an aqueous phase anion. A new organic ligand 1,5-bis[2-(2′-carboxypentadecyloxy)phenoxy]-3-oxapentane (8) which bears a tetradecyl group as an alkyl chain at the α-position of the carboxylic acid side-arm unit is sufficiently lipophilic to avoid loss of the complexing agent into the aqueous phase during solvent extraction and exhibited a calcium selectivity over other alkaline-earth cations.

Original languageEnglish
Pages (from-to)115-121
Number of pages7
JournalMicrochemical Journal
Volume55
Issue number1
Publication statusPublished - 1997 Jan 1
Externally publishedYes

Fingerprint

Liquid membranes
Polyethers
Cations
Earth (planet)
Dicarboxylic Acids
Solvent extraction
Carboxylic Acids
Anions
Metal ions
Protons
Ligands
Calcium

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

Cite this

Synthesis of lipophilic acyclic diionizable polyethers and selective transport of alkaline-earth cations in bulk liquid membrane system. / Kim, Jong Seung; Cho, Moon Hwan; Lee, Sang Chul; Lee, Yong I.; Sim, Wonbo; Cho, Nam Sook.

In: Microchemical Journal, Vol. 55, No. 1, 01.01.1997, p. 115-121.

Research output: Contribution to journalArticle

Kim, Jong Seung ; Cho, Moon Hwan ; Lee, Sang Chul ; Lee, Yong I. ; Sim, Wonbo ; Cho, Nam Sook. / Synthesis of lipophilic acyclic diionizable polyethers and selective transport of alkaline-earth cations in bulk liquid membrane system. In: Microchemical Journal. 1997 ; Vol. 55, No. 1. pp. 115-121.
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