摘要
PBM催化剂是非常有效的CO2和环氧化物共聚催化剂,但从产物中回收困难。本文尝试分别用环氧树脂、酚醛树脂和聚氨酯泡沫作为载体将PBM催化剂负载,再催化环氧化物和CO2共聚,并通过IR、1HNMR对共聚产物进行表征分析。结果显示,聚氨酯泡沫负载的PBM成功地催化了CO2和环氧丙烷、环氧乙烷以及氧化环已烯的共聚反应,尤其是在催化CO2和环氧丙烷的共聚中显示了较好的催化效率(28g/g),而且负载催化剂循环使用三次后仍有催化活性,有利于实现反应工艺的连续化。
The PBM catalysts are very efficient for catalyzing the copolymerization of CO2 and epoxides, but it＇s very difficult to be removed from the products. In this paper, the foam-supported PBM catalysts were prepared using epoxy resin, phenol aldehyde resin, and polyurethane and applied in the copolymerization of CO2 and epoxides. The copolymers were characterized using IR and ^1HNMR. Polyurethane foam supported PBM has a good copolymer yield of up to 28 g per gram catalyst for the copolymerization of CO2 and propylene oxide. Further more, the catalyst still keep activity after recycling three times, which is favor to adopting continuous production process.
出处
《天然气化工—C1化学与化工》
CAS
CSCD
北大核心
2006年第4期24-27,31,共5页
Natural Gas Chemical Industry
基金
国家自然科学基金资助项目(基金号20274053)
江苏省科技攻关项目(项目编号BE2003080
BE2003112)
广东省工业攻关项目(项目编号2003B10505)
