Ionic recognition by proton-ionizable lariat ethers and their polymers

Richard A. Bartsch, Jong Seung Kim, Uriel Olsher, D. W. David, P. Purkiss, Visvanathan Ramesh, N. Kent Dailey, Takashi Hayashita

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)


To probe the influence of structural variation within dibenzo-16-crown-5-oxyacetic acids upon the selectivity of alkali metal cation separations by solvent extraction and liquid membrane transport processes, studies have now been conducted in homogeneous solution by NMR spectroscopy and titration calorimetry and in the solid state. Condensation polymerization of such proton-ionizable lariat ethers with formaldehyde produces a new class of ion-exchange resins which contain cyclic polyether binding sites as well as ion-exchange site for metal ion complexation.

Original languageEnglish
Pages (from-to)399-402
Number of pages4
JournalPure and Applied Chemistry
Issue number3
Publication statusPublished - 1993 Jan 1
Externally publishedYes

Bibliographical note

Funding Information:
This research was supported by the Division of Chemical Sciences of the Office of Basic Engergy Sciences of the U.S. Department of Energy and the Texas High Education Coordinating Board Advanced Technology Program.

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering


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