## Abstract Spherical MgCl~2~·nEtOH was prepared by adducting ethanol to MgCl~2~ using melt quenching method. Effect of molar ratio of [EtOH]/[MgCl~2~] = 2.8–3.05 on the morphology and particle size of the MgCl~2~·nEtOH were studied. The best adduct of spherical morphology was obtained when 2.9 mol
A study of polyethylene-gr-2-tert-butyl amino methacrylate-supported TiCl4 catalyst for ethylene polymerization
✍ Scribed by S. B. Mteza; C. C. Hsu; D. W. Bacon
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 795 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0887-624X
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✦ Synopsis
The use of a polyethylene-based copolymer with dual functional groups (polyethylene-gr-2-tert-butyl amino ethyl methacrylate) as the support for TiCll catalyst in ethylene polymerization was studied. Different methods for treating the support were examined and treatment with BuMgCl was found to be the most effective. With the BuMgC1-modified support, a 12-run Plackett-Burman design was used to screen 11 factors in catalyst preparation. Statistical analysis of the results from this design identified significant factors with the amount of BuMgCl singled out to be the most important one for the four response variables of interest, Mg loading, T i loading, catalyst activity per gram catalyst, and catalyst activity per gram Ti.
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