Ruthenium has been incorporated into polyacetylene (PA) by treatment with the olefin metathesis catalyst (H₂IMes)RuCl₂(=CHPh)(3-bromopyridine)₂ (G2B).  Treatment of freshly prepared, porous PA, formed by polymerization of acetylene by G2B, resulted in incorporation of the ruthenium complex into the solid polymer in levels up to 72% by mass, giving metal incorporated polyacetylene (MIPA).  MIPA samples with similar levels (up to 88% by mass) of ruthenium incorporation were obtained by polymerization of acetylene with highly concentrated solutions of G2B, and these materials formed fine suspensions in CH₂Cl₂.  A variety of experiments confirmed the covalent attachment of ruthenium to the polymer.  Many properties of the MIPAs mimicked those of the untreated polyacetylene, except that the MIPA samples were not conductive even when oxidized or reduced.  MIPA films were obtained by pressing the black powders obtained by either method.