통합자연과학논문집 (Journal of Integrative Natural Science)

조선대학교 기초과학연구원 (The Basic Science Institute Chosun University)
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Dehydrocoupling of Bis(1-sila-3-butyl)benzene and 2-Phenyl-1,3-disilapropane to Polymers Using Zirconocene Combination Catalysts

  • Lee, Jun (Department of Chemistry and Nanotechnology Research Center, Chonnam National University) ;
  • Kim, Jong-Hyun (Department of Chemistry and Nanotechnology Research Center, Chonnam National University) ;
  • Mo, Soo-Yong (Department of Chemistry and Nanotechnology Research Center, Chonnam National University) ;
  • Woo, Hee-Gweon (Department of Chemistry and Nanotechnology Research Center, Chonnam National University) ;
  • Kim, Do-Heyoung (Faculty of Applied Chemical Engineering, Chonnam National University) ;
  • Jun, Jin (Department of Optometry and Optic Science, Dongshin University)
  • 투고 : 2011.07.05
  • 심사 : 2011.08.31
  • 발행 : 2011.09.30
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초록

The catalytic dehydrocoupling of bis(1-sila-3-butyl)benzene 1 and 2-phenyl-1,3-disilapropane 2 by $Cp_2ZrCl_2$/Red-Al and $Cp_2ZrCl_2$/n-BuLi was reported to compare their catalytic efficiency. The dehydrocoupling of monomeric silanes 1 with the $Cp_2ZrCl_2$/Red-Al and $Cp_2ZrCl_2$/n-BuLi combination catalysts produced two phases of polymers: one is a highly cross-linked insoluble solid, and the other is noncross-linked or slightly cross-linked soluble oil and could be a precursor for the solid polymer. The dehydrocoupling of 2 with the $Cp_2ZrCl_2$/n-BuLi combination catalyst similarly produced two phases of polymers. By contrast, the catalytic reaction of 2 with the $Cp_2ZrCl_2$/Red-Al combination catalyst produced a soluble polymer via redistribution/dehydrocoupling process.

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