화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.17, No.2, 282-286, March, 2011
DOI10.1016/j.jiec.2011.02.023  Export Citation
Synthesis and properties of poly(N-benzoyl-2-ethynylpyridinium chloride)
Yeong-Soon Gal†, Sung-Ho Jin1, Jong-Wook Park2, and Kwon Taek Lim3
  • Polymer Chemistry Laboratory, College of Engineering, Kyungil University, Gyeongsan 712-701, Gyeongsangbuk-Do, Republic of Korea
  • 1Department of Chemistry Education, Pusan National University, Busan 609-735, Republic of Korea
  • 2Department of Chemistry, Center for Display Research, The Catholic University of Korea, Bucheon 420-743, Republic of Korea
  • 3Division of Image and Information Engineering, Pukyong National University, Busan 608-739, Republic of Korea
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A new ionic polyacetylene with N-benzoylpyridinium substituent was prepared by the activation polymerization of 2-ethynylpyridine by using benzoyl chloride without any additional initiator or catalyst. This reaction proceeded well in homogeneous manner to give a high yield of the polymer (yield: 89%). The initial light-brown solution of 2-ethynylpyridine and benzoyl chloride became a viscous dark-red solution as the polymerization proceeded. The activated acetylenic triple bond of N-benzoyl-2-ethynylpyridinium chloride, formed at first quaternarization process, was susceptible to linear polymerization. This polymer was completely soluble in water, methanol, DMF, and DMSO, and the polymer was found to be mostly amorphous. The instrumental analysis data on the polymer structure revealed that the polymer has conjugated polyene backbone structure with the designed N-benzoylpyridinium substituent. The photoluminescence peak is located at 509 nm corresponding to a photon energy of 2.44 eV. The electrochemical properties of this ionic polyacetylene were also measured and discussed.
Keywords:Polyacetylene;2-Ethynylpyridine;Conjugated polymer;Photoluminescence;Cyclic voltammograms
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