Korean Chemical Engineering Research, Vol.51, No.3, 342-346, June, 2013
이온성 액체를 이용한 CO2와 glycidyl methacrylate의 고리화 첨가 및 고분자 가교 반응
Cycloaddition and Crosslinking Reactions of CO2 and Glycidyl Methacrylate using Ionic Liquid
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초록
온실가스인 CO2를 저감하기 위한 기술로 본 연구에서는 이온성 액체를 이용하여 epoxide계 화합물인 glycidyl methacrylate (GMA)와 CO2의 고리화 첨가 반응(cycloaddition)을 통해 cyclic carbonate를 합성하였다. 합성된 cyclic carbonate인 [2-oxo-1,3-dioxolan-4-yl]methacrylate (DOMA)는 FT-IR과 1H NMR을 이용하여 그 구조를 확인하였다. 또한 1H NMR을 통하여 계산된 조성비를 이용하여 전환율과 시간의 관계를 관찰하였다. DOMA로 전환이 모두 이루어진 이후에는 DOMA의 이중결합이 잔존하는 이온성 액체로 음이온 중합, cyclic carbonate ring의 가교반응에 의한 고분자가 형성되었다.
In this study the cycloaddition of glycidyl methacrylate (GMA) and CO2 using ionic liquid as catalyst was performed for the technology of CO2 reduction. The structure of synthesized cyclic carbonate, [2-oxo-1,3-dioxolan-4-yl]methacrylate (DOMA) was analyzed and confirmed by FT-IR and 1H-NMR. The change in conversion with respect to reaction time was investigated using 1H-NMR. Interestingly, the ionic polymerization of vinyl groups and crosslinking reaction between cyclic carbonate rings of DOMA were observed following completion of cycloaddition.
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