화학공학소재연구정보센터
Applied Chemistry, Vol.9, No.1, 121-124, May, 2005
이온성 액체를 촉매로 사용한 폐닐글리시딜에테르와 이산화탄소의 공중합
Copolymerization of Phenyl Glycidyl Ether With Carbon Dioxide Catalyzed By Ionic Liquids
The copolymerization of phenyl glycidyl ether (PGE) and carbon dioxide was performed without any solvent in the presence of ionic liquid as catalyst. The reaction was carried out in a batch autoclave reactor. The carbonate content of phenyl glycidyl ether was affected by the structure of imidazolium salt ionic liquid; the one with the cation of bulkier alkyl chain length and with more nucleophilic anion showed better reactivity. However, the yield of carbon dioxide addition decreased when hexyl containing ionic liquids are used in place of butyl group in 1-alkyl-3-methyl imidazolium salts. The carbonate content and turnover number (TON) of the polycarbonate increased as the reaction temperature increased from 40 to 80 ℃.