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Leaching of Copper from Furnace Dust by Pure and Mixed Culture of Thiobacillus ferrooxidans and Thiobacillus thiooxidans

  • Son, Kee-Hang (Cheongju High School) ;
  • Lee, Cheal-Gyu (Department of Environmental Engineering, Cheongju University) ;
  • Cho, Nam-Jun (Department of Applied Chemical Engineering, Korea University of Technology & Education)
  • Published : 2007.10.20

Abstract

The synthesis of well-defined dendrons based on aliphatic polyether dendritic cores and glassy polystyrene peripheries is described. The synthetic route involves a combination of living anionic polymerization and a stepwise convergent method consisting of iterative Williamson etherification and hydroboration/oxidation reactions. On the basis of molecular weight, as characterized by gel permeation chromatography (GPC), the first generation dendron (Generation-1) shows a random coil conformation like a linear polystyrene, while higher generations (Generation-2 and 3) reveal globular forms in solution.

Keywords

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