Study on preparation of new modified polyacrylamide grouting material and on its performance

Ultralow molecule weight partly bydrolytic polyacrylamide was synthesized by radical polymerization using thi-ol as a chain transfer agent;then modified polyacrylamide was prepared by ring-opening reaction of glycidyl methacrylate with above synthesized polyacrylamide,and characterized by 1H-NMR. After that a new nontoxic water-soluble polyacrylamide grouting material was prepared by using water-soluble redox system and adding other reagent,and compared its property with that of acrylamide grouting material.The result shows that the modified polyacrylamide grouting material is an environmental protective grouting material with excellent performance.