Synthesis, characterization, and marked polymerization selectivity characteristics of binuclear phenoxyiminato organozirconium catalysts |
| |
Authors: | Salata Michael R Marks Tobin J |
| |
Institution: | Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, USA. |
| |
Abstract: | The new binuclear phenoxyiminato zirconium complex {1,7-(O)2C10H4-2,7-CH=N(2,6-iPr2C6H3)]2}Zr2Cl6(THF)2 (FI2-Zr2) polymerizes ethylene with greater activity (approximately 8x) than the mononuclear analogue. Also, this catalyst produces high molecular weight ethylene + 1-hexene copolymers, while the mononuclear analogue yields only traces of copolymer under identical conditions. This ability to produce copolymers suggests cooperativity between the two Zr centers which promotes 1-hexene co-enchainment. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|