is it possible to find the complex formation constant (log10K) for polymer as the ligand with the metal ions from the potentiometric titration data? Can I determine the constant by using the program such as Hyperquad.
Dear Shella,
yes it is possible, and any book of polyelectrolyte complexes (simplexes) may contains how it is done. I recommend you the book of Professors Dautzenberg and Kötz, of course there are others. Regards
If the ligand is new, we must performed titration of the free ligand in the acid conditions to determine the protonation constants. You can perform titration in the metal ligand ratios 1:1 and 1:2. After that,in the HYPERQUAD model introduce the hydrolysis constants of the metal and the protonation contant of the ligand, and follows to calculate the formation constants of the complex species.
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