Article
  • Polymerization of 2-Ethynylfuran and Its Copoymerization with 2-Ethynylthiophene by WCl6- and MoCl5-Based Catalysts
  • Gal YS, Cho HN, Choi SK
  • WCL6 및 MoCl5계 촉매에 의한 2-에티닐푸란의 중합과 2-에티닐티오펜과의 공중합
  • 갈영순, 조현남, 최삼권
Abstract
The polymerization of 2-ethynylfuran was carried out by WCl6 or MoCl5 associated with cocatalysts such as organotin and oranoaluminum.compounds under various reaction conditions. The effects of monomer to catalyst mole ratio, solvent, cocatalyst, and temperature on the polymerization were studied. The highest yield (43%) and the highest molecular weight (Mn : 12,000) were obtained when the mole ratios of 2-ethynylfuran to WCl6 as a catalyst and WCl6 to n-Bu4Sn as a cocatalyst are 100 and 4, respectively. Ccl6-based catalysts were more effective than MoCl5-based catalysts. Poly(2-ethynylfuran) (PEF)s obtained were partially soluble in organic solvents such as chloroform, toluene and 1,2-dichloroethane. The nuclear magnetic resonance, infrared, and ultraviolet-visible spectra indicated that the resulting soluble polymer has a linear conjugated polyene structure containing furyl substituents. Copolymerization of 2-ethynylfuran with 2-ethynylthiophene exhibited lower reactivity of 2-ethynylfuran in comparison with 2-ethynylthiophene.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1986; 10(7): 688-694

    Published online Dec 25, 1986