DEZ

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Metal Alkyls organometallics

DEZ is a zinc alkyl used as a transfer agent for molecular control in Ziegler-Natta polymerization of olefins.

  • Product name

    DEZ
  • Chemical family

    Metal Alkyls organometallics
  • CAS number

    557-20-0
  • Physical form

    Liquid
  • Regional availability

    Africa, Asia Pacific, Europe, India, Latin America, Middle East, North America
  • Chemical name

    Diethylzinc
  • Molecular Weight

    123.5
  • Applications

    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.

Market Segments

Detailed description

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, and in pharmaceutical applications where it is used mainly because stereo-specific reactions can be carried out.

Functions

  • Cocatalyst

Applications

  • Rubber,
  • Pharmaceutical,
  • Polyethylene

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