Ruthenium-incorporated, metathesis-active polyacetylene

Danielle E.Schuehler Sherwood, Joseph E. Williams, Michael B. Sponsler

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Two olefin metathesis methods have been developed for the preparation of metal-incorporated polyacetylene (MIPA) with high levels of covalently attached ruthenium complex. Treatment of freshly prepared, porous polyacetylene (PA) formed by polymerization of acetylene by the metathesis catalyst (H 2IMes)RuCl 2(=CHPh) (3-bromopyridine) 2 (G2B) with additional G2B resulted in the incorporation of the ruthenium complex into the solid polymer in levels up to 75% by mass, giving twostep MIPA (MIPA2). Alternatively, single-step MIPA (MIPAl) samples with similar levels (up to 79% by mass) of ruthenium incorporation were obtained by polymerization of acetylene with highly concentrated solutions of G2B, and the resulting materials formed fine suspensions in CH 2Cl 2. A variety of experiments confirmed that both the methods give materials with ruthenium covalently attached to PA chains. Shiny, tough MIPA films were obtained by pressing the black powders obtained by either method. Some MIPA properties were dependent on the amount of metal incorporation, but even samples with high incorporation levels mimicked untreated PA in many respects. MIPA1, but not MIPA2, was made electrically conductive by doping with iodine.

Original languageEnglish (US)
Pages (from-to)1061-1072
Number of pages12
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume47
Issue number4
DOIs
StatePublished - Feb 15 2009

Keywords

  • Conducting polymers
  • Conjugated polymers
  • Metallopolymer
  • Metathesis
  • Olefin methathesis
  • Polyacetylene
  • Ruthenium

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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