Article
  • The Effect of 2-Propyn-1-ol on the Polymerization of Phenylacetylene by MoCl5
  • Gal YS, Jung B, Lee WC, Choi SK
  • MoCl5에 의한 페닐아세틸렌의 중합에서 2-프로핀-1-올의 영향
  • 갈영순, 정발, 이원철, 최삼권
Abstract
The polymerization of phenylacetylene using MoCl5-HC≡CCH2OH catalyst system was carried out at various reaction conditions. The effects of the mole ratio of HC≡CCH2OH to MoCl5, the activation and polymerization temperatures, etc. were studied. The best result(polymer yield=58%, Mw=7200) was obtained when the mole ratio of HC≡CCH2OH to MoCl5 was 5. In a wide temperature range(20∼90℃), the polymerizations were well proceeded to give a relatively good yield, regardless of the activation temperature of MoCl5 by HC-CCH2OH. It was concluded that the hydroxyl group of HC≡CCH2OH substituted the chlorine atom of MoCl5 to make an alkoxide derivative of molybdenum which plays a role as an active catalytic species. The polymer structure of posy(phenylacetylene) prepared by MoCl5-HC≡CCH2OH catalyst system was also characterized by various instrumental methods such as NMR( 1H-, 13C-), IR, UV-visible spectroscopies. The thermal properties were also studied.

MoCl5-HC≡CCH2OH촉매 시스템을 사용한 페닐아세틸렌의 중합을 여러가지 반응조건하에서 시도하였다. MoCl5에 대한 HC≡CCH2OH의 몰비, 활성화 온도 및 중합온도의 영향을 연구하였다. MoCl5에 대한 HC≡CCH2OH몰비가 5일 경우 가장 좋은 길과(중합수율=58%, Mw=7,200)를 얻었다. HC≡CCH2OH에 대한 MoCl5 의 활성화 온도에 관계없이 넓은 온도범위에서 중합이 잘 진행되어 비교적 높은 수율을 보였다. HC≡CCH2OH가 MoCl5의 염소원소를 치환시켜 중합시에 활성촉매종으로 작용하는 몰리브데늄의 알콕사이드를 만드는 것으로 판단되었다. MoCl5-HC≡CCH2OH 촉매 시트템에 의해 합성된 폴리페닐아세틸렌의 구조를 NMR(1H-, 13C-), IR, UV-visible등과 같은 분석장비로 규명하였으며 합성한 폴리(페닐아세틸렌)의 열특성에 관해서도 연구하였다.

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

  • 1993; 17(4): 365-371

    Published online Jul 25, 1993