초록 |
We report a simple method for tuning catalytic property of a metallocene-based catalyst, Cp2ZrCl2, for ethylene polymerization by the direct adsorption of Cp2ZrCl2 onto multi-walled carbon nanotubes (MWCNTs). The direct interactions between MWCNTs and the Cp rings of Cp2ZrCl2 controlled the polymerization behaviors, and we could generate polyethylene with an extremely high molecular weight (Mw: 1,000,000) at 30 oC and under 1 atm of ethylene gas. The effect of polymerization temperature on the polymerization behaviors was also investigated. |