Titlebook: Metalorganic Catalysts for Synthesis and Polymerization; Recent Results by Zi Walter Kaminsky Conference proceedings 1999 Springer-Verlag B

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An Absolute Test of Rival Theories for MWDs in Heterogeneous Polymerization-MWDs during Quasi-Living them, the importance of the transitional behavior of MWDs during the quasi-living stage of polymerization is emphasized. Based upon the different mechanisms, all the rival theories have been constructed so as to explain the broad MWDs at the stationary state. Therefore, all competing rate processes

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Kinetics and Mechanism of Ethylene Polymerization and Copolymerization Reactions with Heterogeneous r-Natta catalyst shows a number of kinetic features which are interpreted as a manifestation of multi-site catalysis. The catalyst contains several types of active centers which differ in stability and formation rates, the molecular weights of polymer molecules they produce and in their response to

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Energy Distribution of Active Sites in Heterogeneous Ziegler-Natta Catalysts. Method of Study of Act desorption (TPD) products from the catalyst surface at initial stages of olefin polymerization (up to 10 – 15 monomer units in chain). The method allows to obtain the information concerning the energy non-uniformity of active sites in terms of a distribution of active sites over activation energy o

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Ziegler-Natta and Metallocene Polymerisation of Olefins with Heterogeneous Catalysts Cp.ZrCl. or Et(Ind).ZrCl. — heterogeneous metallocene complexes are produced. The activities of these catalysts in ethylene or propylene polymerisation are as high as the activities known of similar homogeneous catalyst systems with MAO as cocatalyst. The reaction of AlMe. with montmorillonite and

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