화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of the Korean Industrial and Engineering Chemistry, Vol.13, No.7, 632-640, November, 2002
Export Citation
에폭시드와 이산화탄소의 교호 공중합에 의한 환경 친화형, 생분해성 폴리카보네이트의 제조
Production of Environmentally Friendly and Biodegradable Polycarbonates by Alternating Copolymerization of Epoxides with Carbon Dioxide
김일†, 박대원1, 하창식1
  • 부산대학교 고분자공학과, Busan
  • 1부산대학교 화학공학과, Busan
Il Kim†, Dae Won Park1, and Chang Sik Ha1
  • Department of Polymer Science and Engineering, Pusan National University, Jangjeon-dong, Geumjeong-gu , Busan, Korea
  • 1Department of Chemical Engineering, Pusan National University, Jangjeon-dong, Geumjeong-gu, Busan, Korea
E-mail:
초록
이산화탄소는 풍부하고, 경제적이며, 비독성이고 화재의 위험이 없다는 점에서 이상적인 원료가 될 수 있다. 이산화탄소를 이용하는 공정의 하나로 이산화탄소와 에폭시드를 교호 공중합하여 생분해성을 지닌 매력적인 지방족 폴리카보네이트를 제조하기 위한 촉매를 개발하기 위한 연구가 상당하나 관심을 끌고 있다. 최근에 올레핀 중합용 촉매의 개발에 사용한 크기가 큰 β-diimine 리간드를 이용한 새로운 아연 착물이 발명되었다. 이 아연 착물은 균질 용해성 단일 활성점 촉매로 종래의 비균질 촉매에 비하여 활성도가 100배 정도 높은 차세대 에폭시드/이산화탄소 공중합용 촉매라 할 수 있다. 본 보문에서는 에폭시드/이산화탄소 공중합용 촉매의 발전에 대하여 살펴보고 앞으로의 발전에 대하여 전망하여 보았다.
Carbon dioxide is an ideal synthetic feedstock since it is abundant, inexpensive, nontoxic, and nonflammable. There has been considerable interest in the development of catalysts for the alternating copolymerization of carbon dioxide with epoxides to produce aliphatic polycarbonates. Recently a new type of zinc complex has been invented by using bulky β-diimine ligands that were originally developed for synthesizing catalysts for olefin polymerization. This homogeneous single site catalyst showed a higher activity in the copolymerization of carbon dioxide with epoxides than a conventional heterogeneous catalyst by almost 100 times. Thus, this new catalyst is worthy of noting as a possible next generation of copolymerization catalyst. In this review we investigated the development history of the catalyst for the copolymerization of carbon dioxide with epoxides, and proposed our expectation on the development of future catalysts.
Keywords:alternating copolymerization;carbon dioxide;epoxides;zinc complexes;biodegradable
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