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Ethylene oligomers Ziegler process

Actinide, lanthanide, and yttrium-based catalyst systems showing characteristics of reversible chain transfer in ethylene polymerization are summarized in Table 3. Samsel and Eisenberg claimed to observe the characteristics in ethylene polymerization with several metallocenes of actinides, such as the bis(pentamethylcyclopentadienyl) thorium complex 5 in combination with aluminum alkyl reagents. These systems catalyze the production of aluminum alkyl chain growth products at lower temperatures than those required by the uncatalyzed Ziegler process. The systems were limited to production of low-molecular-weight PE oligomers. [Pg.711]


See other pages where Ethylene oligomers Ziegler process is mentioned: [Pg.540]    [Pg.161]    [Pg.3159]    [Pg.34]    [Pg.411]    [Pg.3]    [Pg.184]    [Pg.230]    [Pg.184]    [Pg.180]    [Pg.130]    [Pg.509]    [Pg.96]    [Pg.100]   
See also in sourсe #XX -- [ Pg.1720 ]




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