Popis: |
N-vinylation of pyrazolecarboxylates and 1,2,3-triazolecarboxylates with vinyl acetate leads to the formation of the N-vinylpyrazoles and N-vinyl-1,2,3-triazoles. The structures are determined by mass and NMR spectra. The syntheses of crosslinked poly[1-(3,4-dicarboxypyrazol-1-yl)ethylene] (12) and poly[1-(4,5-dicarboxy-1,2,3-triazol-2-yl)ethylene] (13) are described. The swelling behaviour, the time dependence of the uptake of Cu2+-ions and the pH-dependence of the uptake of Cu2+-, Zn2+-, and Mg2+-ions of these resins were investigated. |