None-metallocene Early Transition Metal Catalyst for Value-added Polyolefin
ZENG Wan~1;LI Hua-yi~2;LI Jin-ge~1;2;ZHANG Liao-yun~1;HU You-liang~2;Joint Laboratory of Polymer Science and Materials;Key Laboratory of Engineering Plastics;Institute of Chemistry;Chinese Academy of Science;Beijing 100080;China)