Synthesis of linear α-olefins via polyhomologation

Carl E. Wagner, Andrew A. Rodriguez, Kenneth J. Shea

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29 Scopus citations

Abstract

Linear α-olefins (LAOs) of controlled molecular weight and low PDI were synthesized in high yield by the polyhomologation reaction of dimethylsulfoxonium methylide (1) with triallylborane (2). Following polymerization, propionic acid or trimethylamine N-oxide dihydrate (TAO) was used to afford α-vinyl-ω-methyl or α-vinyl-ω-hydroxy end-functionalized polymethylene, respectively. Controllable molecular weights up to 13 kDa were obtained by varying the initial monomer/catalyst ratio, and the resultant polymers had very narrow polydispersities (PDI < 1.08). Although polymer yields were generally high, quantities of oxidized side products were observed in α-vinyl-ω-methyl samples; however, these oxidized side products could be removed for samples of low molecular weights (C n ≤ 36).

Original languageEnglish (US)
Pages (from-to)7286-7291
Number of pages6
JournalMacromolecules
Volume38
Issue number17
DOIs
StatePublished - Aug 23 2005

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ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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