An acylamino and hydroxyl functionalized hydrogel [p( HMAm / HEA) ] was newly prepared by the60Co-γ-induced polymerization of N-hydroxymethyl acrylamide( HMAm) and 2-hydroxyethyl acrylate( HEA). Then the copolymer p( HMAm / HEA)hydrogel was utilized for in situ nanosized hydrous manganese dioxide( HMO) loading to prepare nanocomposite hydrogel HMO-p( HMAm/HEA) for Pb~(2+)and Cu~(2+)removal. The nanocomposite hydrogel was characterized by SEM,TEM and FTIR,showing that p( HMAm / HEA) hydrogel was indeed a cop...