Mv. Russo et al., SYNTHESIS AND XPS CHARACTERIZATION OF ORGANOMETALLIC PD CONTAINING POLYMERS FROM MONOSUBSTITUTED ACETYLENES, Polymer, 38(14), 1997, pp. 3677-3690
Organometallic polymers containing Pd atoms in different co-ordination
sites were obtained and characterized. The reactions were performed i
n a wide range of complex/monomer molar ratios. Functionalized monosub
stituted acetylenes, namely propargyl alcohol (POH) and N,N-dimethylpr
opargylamine (DMPA) undergo coordinative polymerization in the presenc
e of the corresponding bis(triphenylphosphine)bis(acetylide) Pd(II) co
mplexes, [Pd(PPh3)(2)(C=C-CH2OH)(2)] and [Pd(PPh3)(2)(C=C-CH2N (CH3)(2
))(2)]. The complexes are active catalysts for the activation of the C
-C bond of acetylenic monomers, leading to a pi-conjugated C=C backbon
e. By increasing the complex/monomer ratios, interaction of Pd with th
e C=C double bonds of neighbour chains and with the polymer pendant gr
oups also occurs. (C) 1997 Elsevier Science Ltd.