Complexes of poly(acrylic acid) with some divalent, trivalent and tetravalent metal ions
作者： Rodolphe Roma-Luciow , Lena Sarraf , Michel Morcellet
DOI: 10.1016/S0014-3057(01)00066-0
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摘要: Abstract The formation of metal complexes between poly(acrylic acid) and divalent, trivalent tetravalent ions was studied. For divalent pseudodivalent ions, the stability constants determined according to method Gregor et al. [J. Phy. Chem. 59 (1954) 34] are in order Cu 2+ >VO >Co >Ni , Zn . values were nearly insensitive ligand concentration ratio range R =1–10. Trivalent also induced a strong decrease pH but could not be from curves. divided four groups depending on shape curve Δ vs α These differ one another by (i) speed water exchange or (ii) coordination sphere case lanthanide's.
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