Acyclic diene metathesis (ADMET) polymerization using a well-defined ruthenium based metathesis catalyst

Krystyna Brzezinska, Patrick S. Wolfe, Mark D. Watson, Kenneth B. Wagener

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


A series of α,ω-dienes have been exposed to Ru(Cl2)(CH=Ph)(PCy3)2, [Ru] 3, metathesis catalyst under acyclic diene metathesis (ADMET) conditions, and the products were compared with those obtained previously using Schrock's well defined Mo and W alkylidenes. High molecular weight polymers can be synthesized using [Ru] 3 if lower monomer to catalyst ratios (with respect to [Mo] 1 and [W] 2 are used. Monomer structure plays a role since 1,9-decadiene produces molecular weights typical of ADMET chemistry, whereas 1,5-hexadiene produces only oligomers. This decrease in reactivity is attributed to a manifestation of intramolecular π-complexation of the tethered olefin in 1,5-hexadiene polymerizations. Substituents at the 2-position of α,ω-dienes also affects polymerization in that only dimers can be produced from 2-methyl-1,5-hexadiene, a result similar to the same reaction performed with [W] 2. Diallyl ether oligomerizes effectively in the presence of [Ru] 3 with a ratio of cyclics to oligomers comparable to results obtained with [Mo] 1 and [W] 2.

Original languageEnglish
Pages (from-to)2065-2074
Number of pages10
JournalMacromolecular Chemistry and Physics
Issue number6
StatePublished - Jun 1996

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry


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