Synthesis of polybutadiene‐<i>graft</i>‐poly(dimethylsiloxane) and polyethylene‐<i>graft</i>‐poly(dimethylsiloxane) copolymers with hydrosilylation reactions

Abstract

Abstract We report preliminary results for the synthesis of polyethylene‐ graft ‐poly(dimethylsiloxane) copolymers obtained by catalytic hydrogenation of polybutadiene‐ graft ‐poly(dimethylsiloxane) copolymers (PB‐ g ‐PDMS). These last copolymers were synthesized by hydrosilylation reactions between commercial polybutadiene and ω‐silane poly(dimethylsiloxane). The reaction was carried in solution catalyzed by cis ‐dichloro bis(diethylsufide) platinum(II) salt. The PB‐ g ‐PDMS copolymers were analyzed by 1 H and 13 C NMR spectroscopies, and the relative weight percentages of the grafted poly(dimethylsiloxane) macromonomer were determined from the integrated peak areas of the spectra. © 2004 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 42: 2920–2930, 2004