| 초록 |
Late transition metal catalysts have received much attention since M. Brookhart introduced -diimine Ni complexes for ethylene polymerization. Recently, several chemists published that bi-metal or multi-metal Ni complexes have wide molecular weights and possibility to copolymerize ethylene with polar monomers. We synthesized dendritic multi-metal Ni complexes by using methylenebis 2,6-diisopropylaniline and aminotriester derivatives. We investigated the effect of various generation catalytic system, polymerization temperature and various cocatalyst. |
