Active centers of TiCl3catalysts for propene polymerization
β Scribed by G. Bier
- Book ID
- 104685441
- Publisher
- Springer
- Year
- 1982
- Tongue
- English
- Weight
- 427 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0170-0839
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π SIMILAR VOLUMES
## Abstract ^13^C NMR analysis of the chainβend distribution of poly(propylenes) prepared using the highly active catalyst system MgCl~2~/TiCl~4~/dietherβAlEt~3~ has revealed particularly high proportions of butyl chainβends in polymers prepared at relatively low hydrogen pressures. This indicates
The aging of the MgCl,/dioctyl phthalate (DOP) or ethyl benzoate (EB)/TiCl, catalyst was studied. Because of the strong complexation of DOP with the catalyst, only a small fraction of DOP was extracted by cocatalyst triethylaluminium (TEA) during aging, resulting in converting some highly isospecifi