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Metal binding properties of poly[N,N,N′,N′-tetrakis(2-hydroxypropyl)ethylenediamine methacrylate]

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Summary

When incorporated into a polymer hydrogel, the metal chelator, N,N,N′,N′-tetrakis(2-hydroxypropyl)ethylenediamine (THPED), retains its metal binding properties. The resultant poly(THPED methacrylate) homopolymer is a polybase with displacement binding constants for copper (II) and zinc(II) of-3.11 and-6.55, respectively, as compared to values for THPED of-3.83 and-7.44. The chelating capacity of the polymer for various divalent metal ions at pH 5.5 follows the order Cu>Cd>Co>Zn>Mn, while calcium and magnesium do not bind. Metal ion release curves indicate that after 30 hours, Cd(II), Co(II), Zn(II), and Mn(II) are released at a slow, steady rate, while Cu(II) is not released under experimental conditions.

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Authors and Affiliations

  1. Department of Chemistry, University of Akron, 44325-3601, Akron, OH, USA

    J. A. Fulton & D. J. Smith

Authors
  1. J. A. Fulton
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  2. D. J. Smith
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Fulton, J.A., Smith, D.J. Metal binding properties of poly[N,N,N′,N′-tetrakis(2-hydroxypropyl)ethylenediamine methacrylate]. Polymer Bulletin 32, 705–712 (1994). https://doi.org/10.1007/BF00973923

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  • DOI: https://doi.org/10.1007/BF00973923

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