Amorphous Elastomeric Ultra-High Molar Mass Polypropylene in High Yield by Half-Titanocene Catalysts.

ABSTRACT: Propylene polymerizations with different ketimide-modified half-titanocene catalysts, Cp'TiCl₂(N=CtBu₂) [Cp' = C₅H₅ (1), C₅Me₅ (2), Me₃SiC₅H₄ (3)], with MAO as a cocatalyst, were investigated. The obtained polymers were studied in detail by determining their microstructure, molar masses, thermal, and mechanical properties. The Cp*-ketimide, (C₅Me₅)TiCl₂(N=CtBu₂) (2), exhibited higher catalytic activities than Cp'TiCl₂(N=CtBu₂) (1,3), yielding higher molar mass polymers, M_w up to 1400 Kg/mol. All the synthesized polypropylenes (PP) are atactic and h

SUBMITTER: Losio S 

PROVIDER: S-EPMC10893264 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature