Linear polyethyleneimine supports for resins with retention properties for heavy metals. Part 2

Summary A linear polyethyleneimine obtained by cationic polymerization of 2-methyl-2-oxazoline was crosslinked with 1,4-dibromo-2-butene (IML-1). This resin subsequently was N-alkylated with dimethyl sulphate (IML-1M). With both resins were carried out analytical assays, such as: pH dependence for copper (II), uranium (VI), iron (II) and (III); maximum capacity of load for copper and uranium; elution assays. Moreover, the morphology by scanning electron microscopy and thermal stability were studied.