• Thumbnail for Metallocene
    related to the metallocenes are the metallocene derivatives, e.g. titanocene dichloride or vanadocene dichloride. Certain metallocenes and their derivatives...
    22 KB (2,174 words) - 18:01, 25 June 2024
  • methylaluminoxane (or methylalumoxane, MAO). These catalysts traditionally contain metallocenes but also feature multidentate oxygen- and nitrogen-based ligands. Ziegler–Natta...
    17 KB (1,843 words) - 20:03, 9 April 2024
  • A post-metallocene catalyst is a kind of catalyst for the polymerization of olefins, i.e., the industrial production of some of the most common plastics...
    8 KB (958 words) - 21:54, 26 June 2022
  • Thumbnail for Ansa-metallocene
    An ansa-metallocene is a type of organometallic compound containing two cyclopentadienyl ligands that are linked by a bridging group such that both cyclopentadienyl...
    3 KB (338 words) - 19:38, 22 September 2023
  • Thumbnail for Kaminsky catalyst
    catalytic system for alkene polymerization. Kaminsky catalysts are based on metallocenes of group 4 transition metals (Ti, Zr, Hf) activated with methylaluminoxane...
    5 KB (491 words) - 20:39, 19 June 2024
  • Thumbnail for Polypropylene
    carried out with the use of a special class of metallocene catalysts. They employ bridged bis-metallocene complexes of the type bridge-(Cp1)(Cp2)ZrCl2 where...
    50 KB (5,792 words) - 14:47, 2 July 2024
  • In organometallic chemistry, bent metallocenes are a subset of metallocenes. In bent metallocenes, the ring systems coordinated to the metal are not parallel...
    9 KB (944 words) - 02:38, 16 December 2023
  • In organometallic chemistry, f-block metallocenes are a class of sandwich compounds consisting of an f-block metal and a set of electron-rich ligands such...
    13 KB (1,640 words) - 16:48, 11 May 2024
  • Thumbnail for Polyethylene
    soluble catalysts, the metallocenes, were reported in 1976 by Walter Kaminsky and Hansjörg Sinn. The Ziegler- and metallocene-based catalysts families...
    59 KB (6,425 words) - 21:48, 26 June 2024
  • using regioselective and stereoselective catalysts known as metallocenes. The metallocene catalyst becomes embedded in the polymer and cannot be recovered...
    4 KB (533 words) - 11:37, 13 February 2024