Synthesis and Characterization of Poly(alkoxysilane)s Catalyzed by Co/Ni Colloidal Nanoparticles

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Abstract:

Si–Si/Si–O dehydrocoupling of hydrosilanes with alcohols (1:1.5 mole ratio), catalyzed by group VIII metallocenes Cp2M′ (M′ = Co, Ni) which converted to Co(0)/nickel(0) colloidal nanoparticles, produced poly(alkoxysilane)s in one-pot in high yield. The hydrosilanes include p-X-C6H4SiH3 (X = H, CH3, OCH3, F), PhCH2SiH3, and (PhSiH2)2. The alcohols include MeOH, EtOH, iPrOH, PhOH, and CF3(CF2)2CH2 OH. The weight average molecular weight of the poly(alkoxysilane)s were in the range of 600 to 8100. The dehydrocoupling reactions of phenylsilane with ethanol (1:3 mole ratio) in the presence of the nanocolloid catalyst gave only triethoxyphenylsilane as product.

Keywords: CATALYST; DEHYDROCOUPLING; HYDROSILANES; METALLOCENE; NANOCOLLOID; POLY(ALKOXYSILANE)

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2010.2337

Publication date: May 1, 2010

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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