CAJ | 학술논문

合成了一系列基于Zna[M(CN)b]c(M= Fe2+, Cr3+, Ni2+, Co3+, Mn3+, Mo4+, Cd2+ 和Fe3+)的双金属络合催化剂,并且用于催化环氧丙烷和二氧化碳的共聚反应,以研究中心金属对催化剂催化性能的影响.实验结果表明中心金属对催化剂催化性能影响很大,其中以Co3+, Ni2+为中心金属的催化剂具有较高的催化效能,分别达到2000 和 482 g/g, 而以Cd2+, Mn3+为中心金属的催化剂几乎没有催化活性.以Co3+, Ni2+, Fe3+为中心金属的催化剂能得到x(CO2)大于0.3的共聚物,而其它催化剂的共聚产物的x(CO2)小于0.1.
합성료일계렬기우Zna[M(CN)b]c(M= Fe2+, Cr3+, Ni2+, Co3+, Mn3+, Mo4+, Cd2+ 화Fe3+)적쌍금속락합최화제,병차용우최화배양병완화이양화탄적공취반응,이연구중심금속대최화제최화성능적영향.실험결과표명중심금속대최화제최화성능영향흔대,기중이Co3+, Ni2+위중심금속적최화제구유교고적최화효능,분별체도2000 화 482 g/g, 이이Cd2+, Mn3+위중심금속적최화제궤호몰유최화활성.이Co3+, Ni2+, Fe3+위중심금속적최화제능득도x(CO2)대우0.3적공취물,이기타최화제적공취산물적x(CO2)소우0.1.
A series of double metal cyanide (DMC) complexes based on Zna[M(CN)b]c (M= Fe2+,Cr3+, Ni2+, Co3+, Mn3+, Mo4+, Cd2+ and Fe3+) were prepared and employed as catalysts for copolymerization of propylene oxide and CO2 to investigate the effect of central metal on catalytic performance. The results showed that the efficiency of catalysts and the composition of products varied significantly with change of central metal. The DMC based on Co3+, Ni2+ exhibited highest efficiency among these catalysts, which was 2000 and 482 g/g, whereas the DMC based on Cd2+, Mn3+ nearly exhibited no catalytic activity towards copolymerization. The copolymer with molar fraction of CO2(x(CO2) )greater than 0.3 could be obtained when DMC based on Co3+, Ni2+, Fe3+ were employed, in contrast copolymers with low x(CO2) (≤0.1)produced in most cases for other catalysts.