Progress of Non-metallocene Catalysts for Olefin Living Polymerization

The progress in the research and application of non-metallocene catalysts for olefin living polymerization has been reviewed in recent years.Their synthesis,molecular structure and reactivity for olefin polymerization are discussed.The impact of different heteroatom and substituents on the catalytic olefin polymerization activity,the structure and molecular weight of polymer are investigated.Research shows that the preparation for non-metallocene is convenient and the reaction conditions are mild.They show high catalytic activity in the olefin polymerization.