Unbridged metallocene dichloride complexes with mono-substituted indenyl ligands and their application for the polymerization of propene
作者:Roland Schmidt、Helmut G Alt
DOI:10.1016/s0022-328x(00)00776-2
日期:2001.3
synthesis of unbridged metallocene dichloride complexes of the type Ind′2ZrCl2 (Ind′=2-alkyl- or arylalkyl-substituted indenyl) is described. The complexes are characterized by 1H- and 13C-NMR spectroscopy and mass spectrometry. After activation with methylalumoxane these complexes can be used for propenepolymerization; they produce block copolymers consisting of alternating isotactic and atactic blocks