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

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

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

21 Citaten (Scopus)
478 Downloads (Pure)

Samenvatting

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.

Originele taal-2English
Pagina's (van-tot)2052-2057
Aantal pagina's6
TijdschriftOrganometallics
Volume27
Nummer van het tijdschrift9
DOI's
StatusPublished - 12-mei-2008

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