Synthesis and characterization of stereoregular π-conjugated polyarylenynes, (-Ar-(E)-CH=CHC≡C-)n, decorated with branched bis-alkoxy side chains
Novel poly(p-phenyleneethynylenevinylene)s (PPEV) have been synthesized by step-growth oligomerization of 2,5-diethynyl-1,4-dialkoxybenzene monomers promoted by the ruthenium pre-catalyst [{RuCl(μ-Cl)(η6-p-cymene)}2] in the solvent mixture AcOH/CH2Cl2.