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Complexes of Na-, Ca-, and Zn-montmorillonites with an aminated cyclodextrin

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Abstract

The uptake of mono-(6-β-aminoethylamino-6-deoxy)-β-cyclodextrin (CDen) by Na-, Ca- and Zn-montmorillonites has been examined at 25°C. Each of the first two minerals forms only one intercalated phase in which the CDen molecules are intercalated as a monolayer, while the third yields a mixture of two intercalated phases whose interlayer spaces are occupied by mono- and bilayers of the guest molecules. Intercalation proceeds by ion exchange with the interlayer cations for the Na-complex and by forming metalaminoethylamino chelate complexes for the others.

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References

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    T. Kijima, J. Tanaka, M. Goto, and Y. Matsui:Nature 310, 45 (1984).

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    T. Kijima, M. Kobayashi, and Y. Matsui:J. Incl. Phenom 2, 807 (1984).

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Correspondence to Tsuyoshi Kijima.

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Kijima, T., Takenouchi, S. & Matsui, Y. Complexes of Na-, Ca-, and Zn-montmorillonites with an aminated cyclodextrin. Journal of Inclusion Phenomena 5, 469–472 (1987). https://doi.org/10.1007/BF00664104

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Key words

  • Montmorillonite
  • aminated cyclodextrin
  • intercalation