The influences of the PAMAM dendrimers with different terminal groups
CH3COONa and PAANa on the crystallization of CaCO3 in aqueous solution are studied.The mechanism of the dendrimer influencing the crystal of CaCO3 is analyzed.The result indicates that PAMAM dendrimers with-COONa terminal groups complexing with Ca2+ leads to the arrangement of vaterite.So the dendrimers with-COONa terminal groups are a kind of habit modifier and can influence the crystal morphology upon CaCO3 crystallization.