Systematic Study of the Effects of Polyamines on Calcium Carbonate Precipitation

摘要: While negatively charged organic additives are widely used as an effective means to control CaCO3 precipitation, positively generally considered be much less active. Nevertheless, the cationic polyelectrolyte poly(allylamine hydrochloride) has recently been shown exert significant over driving formation of thin films and fibers, other examples suggest that many promote vaterite formation. This article aims bring together these sometimes conflicting views activity additives. The effect a series polyamines on precipitation was studied, where were selected such amine group type, pKa value (of corresponding conjugated acid), molecular weight, side chain length polymers could evaluated. results unambiguously demonstrate carrying primary groups capable exerting that...