| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 69105 | Journal of Molecular Catalysis A: Chemical | 2006 | 5 Pages |
A MgCl2/AlCl3-supported Ziegler–Natta catalyst is prepared and low isotactic polypropylene is synthesized using this catalyst in the paper. The results indicate that the polymerization activity of the MgCl2/AlCl3-supported Ziegler–Natta catalyst is much higher than that of the MgCl2-supported Ziegler–Natta catalyst. And the attenuation curves of the polymerization rate of different Al/Ti molar ratios suggest the double metal active center is more stable than the single metal active center. Also the effects of the AlCl3/MgCl2 molar ratio, polymerization temperature and external electron donor on the polymerization activity and isotactic index of the products are studied in detail.
Graphical abstractA MgCl2/AlCl3-supported Ziegler–Natta catalyst is prepared and low isotactic polypropylene is synthesized using this catalyst in the paper. The results indicate that the polymerization activity of the MgCl2/AlCl3-supported Ziegler–Natta catalyst is much higher than that of the MgCl2-supported Ziegler–Natta catalyst. And the attenuation curves of the polymerization rate of different Al/Ti molar ratios suggest the double metal active center is more stable than the single metal active center. Also the effects of the AlCl3/MgCl2 molar ratio, polymerization temperature and external electron donor on the polymerization activity and isotactic index of the products are studied in detail. Figure optionsDownload full-size imageDownload as PowerPoint slide
