Polymerization of propylene using supported, chiral, ansa-metallocene catalysts: production of polypropylene with narrow molecular weight distributions
β Scribed by Collins, Scott; Kelly, W. Mark; Holden, David A.
- Book ID
- 115488240
- Publisher
- American Chemical Society
- Year
- 1992
- Tongue
- English
- Weight
- 813 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0024-9297
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π SIMILAR VOLUMES
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
## Abstract In metallocene polymerization, termination by Ξ²βhydride elimination generates polymer chains containing unsaturated vinyl groups at their chain ends. Further polymerization of these macromonomers produces branched polymers. Material properties of the branched polymers not only depend on