Organolanthanide-catalyzed synthesis of amine-capped polyethylenes

Smruti B. Amin, Tobin J. Marks

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

The chain transfer agent dicyclohexylamine is introduced into organolanthanide-mediated ethylene polymerizations to produce amine-terminated polyethylenes. The resulting polymers were characterized by 1H and 13C NMR, GPC, and DSC. Good polymerization activities (up to 104 g polymer/(mol Ln·atm ethylene·h)) and narrow polydispersities are observed in the polymerization/chain transfer process. Dicyclohexylamine-capped polyethylene product molecular weights are found to be inversely proportional to dicyclohexylamine concentration, supporting an amine chain transfer mechanism. The present study represents the first efficient catalytic method for introducing electron-rich amine groups into otherwise inert polyolefins.

Original languageEnglish
Pages (from-to)10102-10103
Number of pages2
JournalJournal of the American Chemical Society
Volume129
Issue number33
DOIs
Publication statusPublished - Aug 22 2007

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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