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Showing 1–3 of 3 results
Advanced filters: Author: Lucia Mergola Clear advanced filters

  • Hg(II)-imprinted polymers were analyzed by Fourier transform infrared spectroscopy. The spectrum of IIP2, prepared using diphenylcarbazone, showed two additional peaks attributed to the stretching of nitrogen bonded to the aromatic carbon of diphenylcarbazone, not found in IIP1. Comparing leached and unleached IIP2, the peak shape of C=N (1636.3 cm−1) in unleached IIP2 was drastically changed emphasizing the interaction of mercury with nitrogen on 4VP. Moreover, a slight shift of the additional peaks was observed. These results show the possible interaction of mercury ions both with the nitrogen bonded to the aromatic carbon of diphenylcarbazone and the nitrogen of the monomer.

    • Lucia Mergola
    • Sonia Scorrano
    • Roberta Del Sole
    Research
    Polymer Journal
    Volume: 48, P: 73-79

  • The present work focuses on the development of a system enable to modulate, upon an external stimuli, the amount of metal ions uptake. A photoresponsive compound was used as a functional monomer for the preparation, for the first time, of a photoresponsive ion-imprinted polymer (PIIP) for Pd(II) uptake. The photoisomerization capability of the submicroparticles of PIIP, with conformational changes of the polymer, was demonstrated and an improved binding capacity versus Pd(II) was observed after UV exposure of the polymer with maximum binding capacity near to 22 mg g−1.

    • Lucia Mergola
    • Tiziana Stomeo
    • Roberta Del Sole
    Research
    Polymer Journal
    Volume: 52, P: 743-754