Cyclopolymerization of 1,6-Heptadiyne by Molybdenum and Tungsten-Based Catalysts

  • Gal, Yeong-Soon (Polymer Chemistry Laboratory, College of General Education, Department of Textile and Fashion Technology, Kyungil University) ;
  • Lee, Won-Chul (Polymer Chemistry Laboratory, College of General Education, Department of Textile and Fashion Technology, Kyungil University) ;
  • Gui, Tae-Long (Department Materials Physics, Harbin University of Science and Technology) ;
  • Jin, Sung-Ho (Department of Chemistry Education Pusan National University) ;
  • Kwangnak Koh (Department of Chemical Engineering and Department of Dyeing Finishing, Kyungpook National University) ;
  • Kim, Sung-Hoon (Department of Chemical Engineering and Department of Dyeing Finishing, Kyungpook National University) ;
  • Kim, Dong-Won (Department of Industrial Chemistry, Hanbat National University) ;
  • Ko, Jang-Myoun (Department of Industrial Chemistry, Hanbat National University) ;
  • Chun, Jong-Han (Department of Industrial Chemistry, Hanbat National University)
  • 발행 : 2001.08.01

초록

The polymerization of 1,6-heptadiyne was carried out by molybdenum and tungsten-based transition metal catalysts. This polymerization by MoCl$\_$5/ alone proceeded well to give a quantitative yield of polymer. The effect of monomer to catalyst mole ratio (M/C), initial monomer concentration ([M]$\_$0/), and the polymerization temperature for the cyclopolymerization of 1,6-heptadiyne was studied and discussed. The polymerization solution exhibited red color even after 30 min of polymerization time. The resulting polymers were mostly brown powders and mostly insoluble in any organic solvents although the polymerization proceeded in homogeneous manner in some cases. The polymer structure was characterized by various instrumental methods to have the conjugated polymer backbone structure carrying cyclic recurring unit. The thermal and morphological properties of the resulting poly(1,6-heptadiyne) were also discussed.

키워드

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