Synthesis of linear polyolefins with palladium complexes

Takuya Kochi, Kenji Yoshimura, Shusuke Noda, Kyoko Nozaki

Research output: Contribution to conferencePaperpeer-review

Abstract

Reaction conditions for copolymerization of ethylene and methyl acrylate with 2 or 3 to afford highly linear copolymers were screened. Lowering the temperature of the copolymerization reaction led to an increase in molecular weight. Terminating end group analysis showed that copolymers prepared with 3 predominantly possess 2-methoxycarbonylethenyl group, instead of vinyl group. By decreasing the amount of methyl acrylate used and increasing the ethylene pressure, Mn up to 28200 was achieved. Ethylene homopolymerization with 3 also provided highly linear polyethylene with a molecular weight of 70000. Reaction of 3 with ethylene provided palladium complexes with long n-alkyl ligands, which suggests coordination polymerization to produce linear polyolefins takes place on the palladium metal.

Original languageEnglish
Pages2701-2702
Number of pages2
Publication statusPublished - 2006 Dec 1
Externally publishedYes
Event55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan
Duration: 2006 Sep 202006 Sep 22

Other

Other55th Society of Polymer Science Japan Symposium on Macromolecules
Country/TerritoryJapan
CityToyama
Period06/9/2006/9/22

Keywords

  • Linear polyolefins
  • Methyl acrylate
  • Palladium complexes
  • Phosphine-sulfonate bidentate ligands
  • Polyethylene

ASJC Scopus subject areas

  • Engineering(all)

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