6533b7cffe1ef96bd12586a0
RESEARCH PRODUCT
Synthesis and catalytic performance in ethylene and 1-octene polymerization of chlorotitanium(IV) silsesquioxane complexes. Effect of increasing ligand denticity and type of nonreactive organic substituents
Bogdan MarciniecAdrian FranczykMarzena BiałekMonika PochwałaKrystyna Czajasubject
Materials scienceDenticityEthylenePolymers and Plastics010405 organic chemistryLigandmicrostructureOrganic ChemistryGeneral Physics and AstronomysilsesquioxaneZiegler-Natta polymerization010402 general chemistry01 natural sciencesSilsesquioxane0104 chemical sciencesCatalysischemistry.chemical_compoundTransition metalchemistryPolymerizationPolymer chemistryMaterials Chemistrytitanium catalystpolyolefins1-Octenedescription
Abstract The series of titanasilsesquioxanes that differ in a way of binding to the transition metal ( via one, two or three oxygen atoms) and type of nonreactive substituents bonded to inorganic oxygen-silicon cage ( i -Bu, Ph, c -C 6 H 11 ) were prepared by reacting of TiCl 4 with 1 eqv. of the silsesquioxane ligand. Upon treatment with an appropriate cocatalyst, all titanium precatalysts are active in ethylene and 1-octene polymerization and produce from low to high molecular weight polyethylenes and moderately ([ mmmm ] = 44–74%) isotactic poly(1-octene)s. The influence of polymerization parameters, type of cocatalyst and the silsesquioxane structure on the catalytic behavior of the title titanium silsesquioxane complexes have been investigated.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-06-01 | European Polymer Journal |