Maleic anhydride copolymers with ability to bind metal ions. 1. polydentate amine derivatives for cr (III) ions' removal

Authors

  • Ana Maria Albu,

    Corresponding author
    1. Department of Polymer Science, University “POLITEHNICA” of Bucharest, 149 Calea Victoriei, 010072 Bucharest, Romania
    2. Centre for Organic Chemistry Costin D. Nenitescu, Romanian Academy, 202B Spl. Independentei CP 35-108, Bucharest 060023, Romania
    • Department of Polymer Science, University “POLITEHNICA” of Bucharest, 149 Calea Victoriei, 010072 Bucharest, Romania
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  • Mihaela Mocioi,

    1. Department of Inorganic Chemistry, University “POLITEHNICA” of Bucharest, Gh. Polizu Street, Bucharest, Romania
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  • Carmencita Doina Mateescu,

    1. INCDFM- Magurele, Bucharest, Romania
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  • Andreea Iosif

    1. Department of Inorganic Chemistry, University “POLITEHNICA” of Bucharest, Gh. Polizu Street, Bucharest, Romania
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Abstract

New polymeric chelate structures derived from maleic anhydride–dicyclopentadiene copolymer (MA–DCPD) were synthesized by chemical modifications with triethylenetetramine (TETA), from Riedel De Haën AG Seelze, Hannover. Germany. Both amide and imide forms of these new polymers have been tested in the retention process of Cr (III) ions. Experimental results referring mainly to the retention capacity and retention efficiency, for different values of the working parameters: contact procedure, batch time, concentration of chelators, and pH, are presented. The polymer structures and their metal complexes were characterized by IR spectroscopy. IR spectra proved that the metal was coordinated by nitrogen from TETA. The thermal properties of modified polymers and polychelates were also examined. Based on these experimental results and literature data, we discuss a possible binding mechanism and suggest the polychelate structures. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

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