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Donator acceptor behavior of aerosil in several organic liquids

  • Colloid Science
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Abstract

Aerosil is studied with regards to its acceptor behavior by means of electrokinetic measurements and UV measurements in various organic liquids. Whereas the values of the general negativ zeta-potential only approximately correspond with the donor number of the liquids determined according to Gutmann, Marie and Gal, and Kravtzov et al., an excellent agreement between zeta-potential and the UV maximum of a dicyano-bis(1,10-phenanthrolin)-ferric [Fe(phen)2(CN)2] complex adsorbed at the solid-liquid interface was found. The fact that traces of water decrease the negative zeta-potential of aearosil in organic liquids is attributed to hydration of the aerosil surface.

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Author notes

  1. S. Spange

    Present address: Institute of Organic and Macromolecular Chemistry, Friedrich Schiller University of Jena, Jena, GDR

  2. H. -J. Jacobasch

    Present address: Institute of Polymer Technology, Hohe Straße 6, 8010, Dresden, Germany

Authors and Affiliations

  1. Institute of Organic and Macromolecular Chemistry, Friedrich Schiller University of Jena, Jena, GDR

    F. Simon & G. Heublein

  2. Institute of Polymer Technology, Hohe Straße 6, 8010, Dresden, Germany

    M. Börner

  3. Department of Chemistry, Friedrich-Schiller-University Jena, Humboldtstr. 10, 6900, Jena, Germany

    S. Spange

Authors
  1. S. Spange
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  2. F. Simon
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  3. G. Heublein
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  4. H. -J. Jacobasch
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  5. M. Börner
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Additional information

Dedicated to Professor Dr. Josef Schurz on the occasion of his 65th birthday.

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Spange, S., Simon, F., Heublein, G. et al. Donator acceptor behavior of aerosil in several organic liquids. Colloid Polym Sci 269, 173–178 (1991). https://doi.org/10.1007/BF00660308

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  • DOI: https://doi.org/10.1007/BF00660308

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