| 摘要 |
PURPOSE:The titled chelating resin excellent in an ability of sequestering a metal (especially, heavy metals such as Cu, Ni or V), prepared by introducing specified polydendate ligands to form pendants. CONSTITUTION:An aminomethylphosphate chelating resin prepared by introducing polydendate ligands derived from diethylene-triamine-N,N,N',N'-tetramethylphosphoric acid (a group of formula I ) into a styrene matrix to form pendants. The above resins is formed by reacting chloromethylated polystyrene with a Schiff base-type condensate prepared by reacting an aldehyde or the like with diethylenetriamine through its primary amino groups (e.g., diethylenetriamine- N,N,N',N'-disalicylideneiminate of formula II), and hydrolyzing this to form a resin in which the diethylenetriamine is introduced through its secondary amino group to form pendants, and methylphosphating the primary amino groups of the diethylene-triamine residue in the resin. |
