Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Preparation, Characterization and Catalytic Performance of Ionic Liquid Immobilized onto Polystyrene-based Polymer for the Synthesis of Allyl Glycidyl Carbonate

폴리스티렌계 고분자에 고정화된 이온성 액체 촉매의 제조와 알릴글리시딜카보네이트 합성 반응 특성

  • Lee, Mi-Kyung (School of Chemical and Biomolecular Engineering, Pusan National University) ;
  • Choi, Hye-Ji (School of Chemical and Biomolecular Engineering, Pusan National University) ;
  • Park, Dae-Won (School of Chemical and Biomolecular Engineering, Pusan National University)
  • 이미경 (부산대학교 화공생명공학부) ;
  • 최혜지 (부산대학교 화공생명공학부) ;
  • 박대원 (부산대학교 화공생명공학부)
  • Received : 2010.04.13
  • Accepted : 2010.04.30
  • Published : 2010.10.31
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Abstract

In this study, imidazole-based ionic liquid on polystyrene was prepared and its catalytic performance in the cycloaddition of $CO_2$ with allyl glycidyl ether(AGE) to produce allyl glycidyl carbonate was investigated. The ionic liquid was generated on the polystyrene-based polymer through the immobilization of imidazole. The prepared catalyst was characterized using a number of instrumental analysis including EA, FT-IR, TGA and SEM. The immobilized ionic liquid showed very good catalytic activity for the cycloaddition of $CO_2$ with AGE, having 80% of AGE conversion with over 96% of the carbonate selectivity at $120^{\circ}C$ under 1.48 MPa $CO_2$ pressure. The immobilized ionic liquid can be used for the reaction up to four consecutive runs without significant loss of its catalytic activity.

본 연구에서는 이미다졸계의 이온성액체를 폴리스티렌계 고분자에 고정화시킨 촉매를 제조하고, 알릴글리시딜에테르(AGE)와 이산화탄소의 부가반응을 통한 알릴글리시딜카보네이트의 합성반응에서 이 촉매의 반응특성을 고찰하였다. 고정화된 이온성액체는 공중합된 폴리스티렌계 고분자에 이미다졸이 고정화됨으로써 형성되었다. 제조된 촉매에 대해서 EA, FT-IR, TGA 그리고 SEM 등 다양한 기기분석을 통하여 특성분석을 수행하였다. 고정화된 이온성액체 촉매는 반응온도 $120^{\circ}C$, 이산화탄소 압력 1.48 MPa에서 AGE 전환율이 80%이고 생성물의 선택도가 96% 이상으로 우수한 반응성을 나타내었다. 또한 고정화된 이온성액체 촉매는 4회 연속 사용하여도 초기의 활성이 크게 감소하지 않아 안정성이 좋은 것으로 나타났다.

Keywords

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