Experimental results obtained when studying the kinetics of ethylene polymerization in toluene, as well as data on fractionating polyethylene, are analysed and compared with the results of theoretical consideration of molecular weight distribution on the basis of the proposed kinetic scheme. The co
Kinetic laws of ethylene polymerization in the presence of homogeneous catalysts including titanocene and Al(C2H5)2Cl in ethyl chloride medium and mathematical description of the process—I. Ethylene polymerization in the presence of the catalytic system Al(C2H5)2Cl-“Blue complex”
✍ Scribed by A.V. Agasaryan; G.P. Belov; S.P. Davtyan; M.L. Eritsyan
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 408 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0014-3057
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✦ Synopsis
Effect of ethylene concentration, catalyst component and their molar ratio on the polymerization stationary rate, the yield and molecular weight of the polyethylene formed have been investigated. A kinetic scheme for the ethylene polymerization is proposed: a mathematical description of the process is made and the rate constants of some stages are calculated.
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The effect of the carrier characteristics, such as specific surface area and acidity, on the activity of supported Ziegler catalyst in the ethylene polymerization has been investigated. Silica-gel and silica-alumina, containing various quantities of alumina (5, 13 and 25 wt-'~J~,) and also modified