649750-07-2Relevant academic research and scientific papers
Synthesis and characterization of tridentate [O-N(H)X] titanium complexes and their applications in olefin polymerization
Wan, Da-Wei,Chen, Zhou,Gao, Yan-Shan,Shen, Qi,Sun, Xiu-Li,Tang, Yong
, p. 2495 - 2503 (2013/08/25)
A series of [O-N(H)X]TiCl3 complexes derived from (arylamino)methylene phenol are prepared. The molecular structures of the complexes are characterized by 1H NMR, 13C NMR, and X-ray analysis. Upon activation with modified methylaluminoxane (MMAO), the titanium complexes display high thermal stability and single-site like ethylene (co)polymerization behavior at the temperatures of up to 150 °C. 1-Octene and 1-octadencene prove suitable to be incorporated into polyethylene backbone at 110 °C and the highest activity of 1.89 × 106 g/mol(Ti)·h·atm can be achieved. The pendant group X has great influence on the catalytic behaviors of the complexes, and PPh2 proves to be the optimal group.
Synthesis and Characterization of Novel Tridentate [NOP] Titanium Complexes and Their Application to Copolymerization and Polymerization of Ethylene
Hu, Wei-Qiu,Sun, Xiu-Li,Wang, Cong,Gao, Yuan,Tang, Yong,Shi, Li-Ping,Xia, Wei,Sun, Jie,Dai, Hou-Liang,Li, Xiao-Qiang,Yao, Xiao-Li,Wang, Xing-Ren
, p. 1684 - 1688 (2008/10/09)
Novel titanium complexes containing monoanionic [NOP] ligands based on a phenoxyimine ligand and their derivatives were synthesized and characterized. Their performance as ethylene polymerization and copolymerization catalysts were studied. Upon treatment with MMAO, the [NOP]TiCl3 complexes were robust and highly active for the polymerization of ethylene, even at very low cocatalyst/catalyst ratios. These catalysts also have good copolymerization capabilities.
