Polymerization of propylene oxide with Ziegler-Natta catalysts
โ Scribed by Takayuki Otsu; Akira Akimoto; Shuzo Aoki
- Publisher
- John Wiley and Sons
- Year
- 1968
- Tongue
- English
- Weight
- 131 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0021-8995
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๐ SIMILAR VOLUMES
The polymerization of propylene using a mixture of racemic metallocenes and Ziegler-Natta catalysts was investigated. The polypropylene was obtained as a mixture of a fine powder and beads, with the powder being absorbed partially on the beads. The relative amount of the powder can be controlled by
Propylene polymerization was investigated with a sequential addition of Ziegler-Natta and metallocene catalysts. From the fact that the molecular weights of polypropylene (PP) produced with Ziegler-Natta and with metallocene catalysts differ, it was possible to control the molecular weight distribut
Grignard reagent PhMgCl was added during the preparation of the catalyst system MgCl 2 /di-n-butyl phthalate (DNBP)/TiCl 4 {AlEt 3 /diphenyl dimethoxyl silane (DPDMS) to improve its performance. It was found that PhMgCl could enhance both the activity of the catalyst and the isotacticity of the prod