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A Highly Efficient Titanium Catalyst for the Synthesis of Ultrahigh‐Molecular‐Weight Polyethylene (UHMWPE)
Author(s) -
Haas Isabelle,
Hübner Christian,
Kretschmer Winfried P.,
Kempe Rhett
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201301176
Subject(s) - olefin polymerization , catalysis , polyethylene , titanium , polymerization , denticity , ligand (biochemistry) , polymer chemistry , materials science , linear low density polyethylene , chain transfer , molecular mass , olefin fiber , chemistry , chemical engineering , organic chemistry , polymer , composite material , radical polymerization , crystal structure , receptor , biochemistry , engineering , enzyme
Long chain running : The polymerization performance of guanidinato titanium(IV) olefin catalysts is tuned by monodentate ancillary ligands. Polymerization activities of up to 8800 kg PE mol cat. −1 h −1 bar −1 together with molecular weights of 2500 kg mol −1 were observed (see figure; d‐MAO=dry methylalumoxane). Ligand transfer of the additional donor ligands has to be avoided.