DEZ is a zinc alkyl used as a transfer agent for molecular control in Ziegler-Natta polymerization of olefins.
Metal Alkyls organometallics
Africa, Asia, Asia Pacific, China, Europe, Global, India, Latin America, Middle East, North America, Oceania
DEZ in low concentrations is an effective chain transfer agent for molecular weight control in Ziegler-Natta polymerization of olefins. It is useful in the production of polyethylene film with improved resistance to gelstreaking and pinstriping. It is also used as a scavenger to remove poisons from polyethylene reactors. DEZ has been used in a process for the preservation of books made with modern pulp-based paper. DEZ is also used in pharmaceutical applications where it is used mainly because stereo specifically reactions can be carried out. Well known is the Simmons-Smith cyclopropanation. DEZ is also useful in catalytic asymmetric addition to aldehydes or ketones forming chiral secondary or tertiary alcohols.
DEZ is a chain transfer agent for molecular weight control in Ziegler-Natta polymerization of olefins. Also used as a scavenger to remove poisons from polyethylene reactors.