Zirconadihydrophosphetes as Highly Active Species for Ethylene Polymerization
Polyolefins, now account for more than half the volume of all synthesized plastics and have a production of at least 110 million tons.1Single-site catalysts such as metaiiocenes are one of the most important industrial process. Their active species assumed to be dialkyl and/or their cations are very sensitive and an auxiliary ligand (e.g. THF, α-picoline, PMe3, etc.) can enhance the stabilities of cationic 16-electron metallocene species Cp2Zr(R)(L)+.2However, such adducts demonstrated relatively lower catalytic activities because of the stronger Zr-L bond.2a The auxiliary ligand is idealized to interact with the active center and would readily provide a vacancy for olefin coordination.
Peng Hao Shu Zhang Jianjun Yi Wen-Hua Sun
Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences,Instit Petrochemical Research Institute,PetroChina Company Limited,No.20,Xueyuan Road,Beijing 100083,China
国际会议
5th International Symposium on High-Tech Polymer Materials(HTPM-V)(第五届国际高技术高分子材料学术会议)
北京
英文
212-213
2008-10-27（万方平台首次上网日期，不代表论文的发表时间）