Cyclization polymerization of diallylmalonates and copolymerization with ethylene catalyzed by palladium complexes

Sehoon Park*, Daisuke Takeuchi, Kohtaro Osakada

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

Pd(II) complexes with diimine ligands initiate cyclization polymerization of isopropylidene diallylmalonate to produce the polymer containing trans 1,2-disubstituted cyclopentane groups and ester groups. The produced polymer is rich in syndiotactic sequence, whereas use of the Pd complexes with C 2-symmetric ligand affords the isotactic polymer. The polymerization of other diallylmalonates and diallylamines also give the corresponding polymers. The reaction of isopropylidene diallylmalonate under ethylene atmosphere affords the copolymers of isopropylidene malonates and ethylene with 3 mol% - 52 mol% of comonomer incorporation. The copolymer with low malonate incorporation is branched. On the other hand, the copolymer with high malonate incorporation is linear.

Original languageEnglish
Pages2570
Number of pages1
StatePublished - 2005
Externally publishedYes
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: 20 Sep 200522 Sep 2005

Conference

Conference54th SPSJ Symposium on Macromolecules
CountryJapan
CityYamagata
Period20/09/0522/09/05

Keywords

  • Copolymerization
  • Cyclization Polymerization
  • Diallylmalonates
  • Pd complex
  • Stereoselectivity

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