SELECTIVE ADSORPTION OF UO//2**2** plus TO A POLYMER RESIN IMMOBILIZING CALIXARENE-BASED URANOPHILES.

Seiji Shinkai, Hirofumi Kawaguchi, Osamu Manabe

Research output: Contribution to journalArticle

106 Citations (Scopus)

Abstract

The selective extraction of uranium from sea water has attracted extensive attention because of its urgency in relation to energy problems. In order to design a ligand that can selectively bind uranyl ion (UO**2** plus //2), one has to overcome a difficult problem: i. e. , the ligand must strictly discriminate UO**2** plus //2 from other metal ions present in great excess in sea water. As a unique strategy to solve this difficult problem, we recently synthesized calix left bracket 6 right bracket arene derivatives. In general, UO**2** plus //2 complexes adopt either a pseudoplanar pentacoordinate or hexacoordinate structure which is quite different from the coordination structures of other metal ions. We thus expected that compounds 1 which have a cavity preorganized for the hexacoordinate structure would bind UO**2** plus //2 selectively. We found that compounds 1 have remarkably high stability constants and selectivity factors for UO**2** plus //2. 17 Refs.

Original languageEnglish
Pages (from-to)391-396
Number of pages6
JournalJournal of polymer science. Part C, Polymer letters
Volume26
Issue number9
Publication statusPublished - Jan 1 1988
Externally publishedYes

Fingerprint

Calixarenes
sea water
brackets
resins
Metal ions
metal ions
Polymers
Resins
Ligands
Adsorption
ligands
Uranium
adsorption
Water
polymers
uranium
selectivity
Ions
Derivatives
cavities

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)

Cite this

SELECTIVE ADSORPTION OF UO//2**2** plus TO A POLYMER RESIN IMMOBILIZING CALIXARENE-BASED URANOPHILES. / Shinkai, Seiji; Kawaguchi, Hirofumi; Manabe, Osamu.

In: Journal of polymer science. Part C, Polymer letters, Vol. 26, No. 9, 01.01.1988, p. 391-396.

Research output: Contribution to journalArticle

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