A study was conducted to demonstrate in situ diversification of (pyridylamide)hafnium(IV) catalysts. An extensive density functional theory (DFT) study was conducted for several C 1-symmetric and C s-symmetric precatalysts to investigate the diversification of the (pyridylamide)hafnium(IV) catalysts. The study also investigated propylene polymerizations were investigated with two catalysts to find evidence of multisite behavior. It was observed that catalyst systems 1/Ph 3C][B-(C 6F 5) 4] and 2/Ph 3C][B(C 6F 5) 4] produced polypropylene samples with broad molecular weight distributions.
"Uni et Trini": In situ diversification of (pyridylamide) hafnium(IV) catalysts / Busico, V.; Cipullo, R.; Pellecchia, R.; Rongo, L.; Talarico, G.; Macchioni, A.; Zuccaccia, C.; Froese, R. D. J.; Hustad, P. D.. - In: MACROMOLECULES. - ISSN 0024-9297. - 42:13(2009), pp. 4369-4373. [10.1021/ma900780x]
"Uni et Trini": In situ diversification of (pyridylamide) hafnium(IV) catalysts
Busico V.
;Cipullo R.;Pellecchia R.;Rongo L.;Talarico G.;Zuccaccia C.;
2009
Abstract
A study was conducted to demonstrate in situ diversification of (pyridylamide)hafnium(IV) catalysts. An extensive density functional theory (DFT) study was conducted for several C 1-symmetric and C s-symmetric precatalysts to investigate the diversification of the (pyridylamide)hafnium(IV) catalysts. The study also investigated propylene polymerizations were investigated with two catalysts to find evidence of multisite behavior. It was observed that catalyst systems 1/Ph 3C][B-(C 6F 5) 4] and 2/Ph 3C][B(C 6F 5) 4] produced polypropylene samples with broad molecular weight distributions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
