Abstract
Organometallic polymers containing Pd atoms in different co-ordination sites were obtained and characterized. The reactions were performed in a wide range of complex/monomer molar ratios. Functionalized monosubstituted acetylenes, namely propargyl alcohol (POH) and N,N-dimethylpropargylamine (DMPA) undergo coordinative polymerization in the presence of the corresponding bis(triphenylphosphine)bis(acetylide) Pd(II) complexes, [Pd(PPh3)2(CC-CH2OH)2] and [Pd(PPh3)2(CC_CH2N (CH3)2)2]. The complexes are active catalysts for the activation of the CC bond of acetylenic monomers, leading to a π-conjugated C=C backbone. By increasing the complex/monomer ratios, interaction of Pd with the C=C doublel bonds of neighbour chains and with the polymer pendant groups also occurs. © 1997 Elsevier Science Ltd.
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