title: One-pot synthesis and characterization of poly(alkoxysilane)s promoted by silver colloidal nanoparticles.
abstract: Si-Si/Si-O dehydrocoupling of hydrosilanes with alcohols (1:1.5 mole ratio), catalyzed by AgNO3 which converted to Ag(0) colloidal nanoparticles, gave poly(alkoxysilane)s in one-pot in moderate to high yield. The hydrosilanes include p-X-C6H4SiH3 (X = H, CH3, OCH3, F), PhCH2SiH3, and (PhSiH2)2. The alcohols include MeOH, EtOH, (i)PrOH, PhOH, and CF3(CF2)2CH2OH. The weight average molecular weight and polydispersity of the poly(alkoxysilane)s were in the range of 1,600 approximately 8,000 Dalton and 1.4 approximately 3.5. The dehydrocoupling reactions of phenylsilane with ethanol (1:3 mole ratio) in the presence of the silver nanocolloid catalyst produced only triethoxyphenylsilane as product.
authors: Department of Chemistry, Alan G. MacDiarmid Energy Research Institute (AMERI) and Nanotechnology Research Center (NTRC), and Chonnam National University, Gwangju 500-757, Korea.
authors: Myoung-Hee
authors: MH
authors: Kim
authors: Jun
authors: J
authors: Lee
authors: Soo-Yong
authors: SY
authors: Mo
authors: Hee-Gweon
authors: HG
authors: Woo
authors: Kap-Seung
authors: KS
authors: Yang
authors: Bo-Hye
authors: BH
authors: Kim
authors: Myong-Shik
authors: MS
authors: Cho
authors: Jin
authors: J
authors: Jun
authors: Young Chun
authors: YC
authors: Ko
authors: Sung-Hee
authors: SH
authors: Roh
authors: Honglae
authors: H
authors: Sohn