Alkene Polymerization with Catalysts Containing Ionic Complexes [2L·M@dibenzo-18-crown-6]+[TiCl5·L]–(L = CH3CN, M = Li+, K+).

Autor: Rishina, L. A., Kissin, Y. V., Lalayan, S. S., Krasheninnikov, V. G., Zabolotnov, A. A., Tuskaev, V. A., Gagieva, S. Ch., Bulychev, B. M.
Zdroj: Polymer Science - Series B; Feb2024, Vol. 66 Issue 1, p1-10, 10p
Abstrakt: The polymerization of ethylene and propylene and the copolymerization of ethylene with 1-octene with novel type of post-metallocene catalysts containing ionic complexes [2L·M@dibenzo-18-crown-6]+ [TiCl5·L]– (L = CH3CN, M = Li, K) are studied. The binary activator Al(C2H5)2Cl/Mg(C4H9)2 at [Al] : [Mg] ~ 3 is used as a cocatalyst. A linear crystalline polyethylene, an almost fully amorphous, atactic polypropylene, and statistical ethylene-1-octene copolymers containing from 2 to 9 mol % 1-octene are synthesized. The copolymers exhibit a broad molecular-weight distribution and a nonuniform composition distribution like copolymers synthesized over classical Ziegler–Natta catalysts and many post-metallocene systems. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
Externí odkaz: