Premium
Polymerization and Copolymerization Reactions of Light Alkenes with Postmetallocene Catalysts Containing Titanium Complexes with Bidentate Pinacol Ligands
Author(s) -
Rishina Laura A.,
Kissin Yury V.,
Lalayan Svetlana S.,
Gagieva Svetlana Ch.,
Tuskaev Vladislav A.,
Krasheninnikov Vadim G.,
Grinev Vitaly G.
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202000807
Subject(s) - copolymer , polymer chemistry , polymerization , polyethylene , pinacol , catalysis , ethylene , crystallinity , titanium , materials science , chemistry , polymer , organic chemistry , composite material
Two Ti complexes with bidentate ligands derived from pinacol and perfluoropinacol and activated with a binary Al(C 2 H 5 ) 2 Cl ‐ Mg(C 4 H 9 ) 2 cocatalyst are efficient catalysts for polymerization of lightest alkenes, ethylene and propylene, and for their copolymerization. They produce linear polyethylene of moderate molecular weight and essentially atactic amorphous polypropylene. Ethylene/propylene copolymers prepared with these catalysts are compositionally uniform resins with a very low crystallinity degree which can be used as synthetic EPM rubbers.