N,N-双(二硫代羧基)二乙烯三胺乙基聚合物的合成及其吸附性能

Synthesis and Adsorption Property of Polyethylene-N,N-dithio-carboxyl Diethylenetriamine

以二乙烯三胺与二硫化碳反应生成中间体[N,N-双(二硫代羧基)二乙烯三胺],进而与1,2-二氯乙烷聚合生成N,N-双(二硫代羧基)二乙烯三胺乙基聚合物,用红外光谱确认了中间体和聚合物的结构.测定了聚合物对一部分重金属离子的吸附性能.结果表明,聚合物能定量地吸附某些重金属离子,对Ag+、Cu2+等离子有较高的吸附容量.

PolyethyleneN,Ndithiocarboxyl diethylenetriamine was synthesized by reaction of 1,2dichloroethane with the intermediate product (N,Ndithiocarboxyl diethylenetriamine) obtained from the reaction of carbon disulfide with diethylenetriamine. The intermediate product and polymer were characterized by means of infrared spectroscopy. The polymer's adsorption property towards a series of heavy metal ions was examined. The results showed that the polymer could adsorb some heavy metal ions in certain amount and the adsorption capacity for Ag+ and Cu2+ was higher than that for other metal ions.