摘要
以N,N,N’,N’-四甲基乙二胺为配体合成了Zn-Fe氰化物配合物催化剂,以叔丁醇为链转移试剂,用正交试验方法探索了该催化剂开环聚合的最优条件,正交实验结果表明,最佳反应条件为t=100℃,t=6h,ω(Cat)=15mg,ω(t-BuOH)=15mg.分析结果表明,反应产物的数均分子量Mn为10000~13000,分子量分布较窄(Mω/Mn≤1.30),并对聚合反应机理进行了探讨.
A new Fe-Zn double metal cyanide (DMC) complex is a very effective catalyst for the ring-opening polymerization of propylene oxide. With tertbutyl alcohol as the chain transfer agent, orthogonal experimental design was used to find the optimal conditions for the polymerization. The optimal conditions: temperature 100℃, t =6 h, w(Cat) = 15 mg, w(t-BuOH) = 15 mg. Polyoxyproylene diols with Mn( 10 000 ~ 13000) were prepared, and these polymers exhibited the narrow polydispersity (Mw/Mn ≤ 1.30). The mechanism of polymerization was discussed.
出处
《吉林大学学报(理学版)》
CAS
CSCD
北大核心
2006年第3期480-484,共5页
Journal of Jilin University:Science Edition
基金
国家自然科学基金(批准号:20374023).
关键词
双金属氰化物配合物
环氧丙烷
正交试验方法
开环聚合
double metal cyanide complex
propylene oxide
orthogonal experimental design
ring-opening polymerization