DEZ

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Metal Alkyls organometallics

Metal Alkyls organometallics

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

Polymer production

Detailed description

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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