Multimonomers such as poly(2-acryloyloxethyl methacrylate) and poly(2- methacryloyloxyethyl methacrylate) were used as new macrocrosslinkers to crosslink poly(methyl methacrylate). The influence of the kind of macrocrosslinker, its molecular weight and amount on the crosslink density and some properties of the crosslinked polymers networks, such as swelling and mechanical properties (tensile strength and elongation at break) have been examined. The results obtained were compared with those for poly(methyl methacrylate) crosslinked with conventional crosslinker 1,4-butanediol dimethacrylate.