The supported metallocene catalyst wasprepared by immobilized on SiO2 with pre-contacted compounds of rac-Me2Si(Ind)2ZrCl2 and methylaluminoxane (MAO), and its activity for propylene isospecific polymerization reaches 106gPP/mol.
英
美
- 將rac-Me_2Si(Ind)_2ZrCl_2與甲基鋁氧烷(MAO)預絡(luò )合后負載于SiO_2上得到了負載型茂金屬催化劑,并用于丙烯等規聚合,活性可達到10~6gPP/mol.