A new poly (N-e-methacrylamidocaproyloxy-5-norbornene-2

3-dicarboximide) was obtained by radical polymerization of corresponding monomer

in turn prepared by coupling of e-methacrylamidocaproic acid with N-hydroxy-5-norbornene-2

3-dicarboximide in the presence of dicycl ohexylcarbodiimide. The new polymer proved to be good carrier for the immobilization of trypsin. This immobilized trypsin had rather high enzymatic activity.