High catalytic activity of SBA-15-supported metallocene toward ethylene polymerization: The effect of the ordered porous structure of the support

The catalytic activity of the (nBuCp)2ZrCl2 metallocene supported on ordered SBA-15 mesoporous silica and on traditional amorphous silica toward the polymerization of ethylene is studied. High activity values were obtained with the SBA-15-supported catalyst (6953–8407 kg mol−1 Zr bar−1 h−1), which were significantly higher than those presented by the catalyst supported on amorphous silica (959–4234 kg mol−1 Zr bar−1 h−1). The highly ordered...