Sviluppo di nuovi sistemi catalitici dei metalli del gruppo 4 per la polimerizzazione di monomeri olefinici e polari

Abstract

In this PhD work, a series of eight new group 4 metal complexes 1−8 (1 = (t- BuOS)2TiCl2; 2 = (CumOS)2TiCl2; 3 = (t-BuOS)2Zr(CH2Ph)2; 4 = (CumOS)2Zr(CH2Ph)2); 5 = (t-BuOS)2Ti(OiPr)2; 6 = (t-BuOS)2Zr(OtBu)2; 7 = (t- BuOS)2Hf(OtBu)2; 8 = (CumOS)2Zr(OtBu)2) supported by two phenolate bidentate ligands (t-BuOS−H = 4,6-di-tertbutyl- 2-phenylsulfanylphenol and CumOS−H = 4,6-dicumyl-2- phenylsulfanylphenol) were synthesized by the reaction of appropriate metal precursors with 2 equiv of the ligands. These complexes were characterized by means of 1H- and 13C-NMR spectroscopy and the complex 6 by X-ray diffraction... [edited by author]