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Determination of Acidity in the Interior of the Cross-Linked Polyelectrolyte Grain by the Use of pH-Sensitive Probes

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Metal-Containing Polymeric Materials

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Abstract

Circumstantial evidence12 suggests that the state of water in ionite micropores and the acidity of the medium significantly differ from the ones in solution contacting the sorbent. Therefore, the conditions existing in the interior of ionite grains may not be approximated by measurements in solutions, which are performed by researchers. However, it is precisely these conditions that determine complexating processes or catalysis using sorbents as catalysts. Recently, the synthesis of stable nitroxyl radicals (NR) which are sensitive to changes of medium acidity in connection with participation in reactions of proton exchange and may be used as pH-probes, has been carried out.3 4 Using the electron spin resonance spectroscopy (ESR) method, the principal possibility to measure pH-value in a solution at the site of radicals location as well as in micropores of ionites appeared.

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Author information

Authors and Affiliations

  1. Ural State Wood Technology Academy, Siberian highway, 37 Ekaterinburg, 620032, Russia

    Leonid S. Molochnikov & Elena G. Kovalyova

  2. Institite of Organic Chemistry Siberian Branch, Russian Academy of Scienes, Lavrent’ev’s Avenu, 9 Novosibirck, 630090, Russia

    Igor’ A. Grigor’ev & Vladimir A. Reznikov

Authors
  1. Leonid S. Molochnikov
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  2. Elena G. Kovalyova
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  3. Igor’ A. Grigor’ev
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  4. Vladimir A. Reznikov
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Editor information

Editors and Affiliations

  1. Mississippi State University, Mississippi State, Mississippi, USA

    Charles U. Pittman Jr.

  2. Florida Atlantic University, Boca Raton, Florida, USA

    Charles E. Carraher Jr.

  3. City University of New York, New York, New York, USA

    Martel Zeldin

  4. Rider College, Lawrenceville, New Jersey, USA

    John E. Sheats

  5. Ohio State University, Columbus, Ohio, USA

    Bill M. Culbertson

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© 1990 Plenum Press, New York

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Molochnikov, L.S., Kovalyova, E.G., Grigor’ev, I.A., Reznikov, V.A. (1990). Determination of Acidity in the Interior of the Cross-Linked Polyelectrolyte Grain by the Use of pH-Sensitive Probes. In: Pittman, C.U., Carraher, C.E., Zeldin, M., Sheats, J.E., Culbertson, B.M. (eds) Metal-Containing Polymeric Materials. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0669-6_32

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  • DOI: https://doi.org/10.1007/978-1-4613-0669-6_32

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4612-7919-8

  • Online ISBN: 978-1-4613-0669-6

  • eBook Packages: Springer Book Archive

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