Reactions of cationic palladium alpha-diimine complexes with nitrogen-containing olefins: Branched polyethylene with carbazole functionalities

Weidong Li, Xiaochun Zhang, Auke Meetsma, Bart Hessen*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

21 Citations (Scopus)
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Abstract

The reactivity of three nitrogen-containing olefins with a cationic (alpha-diimine)Pd-Me species was studied to evaluate possibilities for their catalytic copolymerization with ethylene. Allyl dimethyl amine gives 1,2-insertion into the Pd-Me bond, but the resulting five-membered chelate is inert toward ethylene. Olefins bearing carbazole substituents insert to form three-membered chelate complexes after a chain-walking process. These chelates are reactive toward ethylene, and N-pentenylcarbazole was successfully copolymerized with ethylene to yield branched polyethylene copolymers bearing carbazole functionalities. The fluorescence of these copolymers is dependent on the amount of incorporated comonomer.

Original languageEnglish
Pages (from-to)2052-2057
Number of pages6
JournalOrganometallics
Volume27
Issue number9
DOIs
Publication statusPublished - 12-May-2008

Keywords

  • TRANSITION-METAL-COMPLEXES
  • CATALYZED COPOLYMERIZATION
  • ETHYLENE
  • POLYMERIZATION
  • MONOMERS
  • REAGENT

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