How do Post Metallocene Catalysts Differ from Metallocene Catalysts?
Metallocene catalysts typically feature a metal center sandwiched between two cyclopentadienyl ligands. In contrast, post metallocene catalysts do not rely on the cyclopentadienyl framework and instead utilize alternative ligand sets. For example, single-site catalysts often employ ligands such as amines, phosphines, or carbenes. This diversification allows for a broader range of catalytic activities and properties, leading to greater control over polymerization processes.
