The copolymer synthesized by carboxymethyl cellulose and butyl acrylate,and careful research the effects of raw material ratio, initiator and crosslinking agent volume for effects of oil and water absorption.It is pointed out that by using ammonium cericnitrate / azobisisobutyronitrile composite initiator two absorption polymer product is obtained.Through IR tested the graft copolymer,it include hydroxyl group,ester group,etc.functional group,the water absorption ratio is 5 g/g,the oil absorption ratio is 4...