第 44 卷第 3 期 | | Vol. 44 No. 3 | 2014 年 6 月 | Jun 2014 |
|
所属栏目:功能材料
Salen-Mn催化剂的固载化及在环氧化反应中的应用研究 |
周建波,曾 明,廖慧英,崔小莹
(长沙医学院,湖南 长沙 410219) |
摘 要:以HMS(NH2)、HMS-PAMAM(G0)、HMS-PAMAM(G1)、HMS-PAMAM(G2)为载体,采用化学接枝法合成了4种Salen-Mn固相催化剂;用红外光谱、热重分析和滴定分析等手段对其进行了表征,并考察了它们在反式二苯乙烯环氧化反应中的催化活性。结果表明随着HMS-PAMAM代数的增加,催化剂催化活性增强,转化频率降低,催化剂重复使用性能较好。 |
关键词:HMS-PAMAM;Salen-Mn;固载化;环氧化反应 |
中图分类号:O643.32 文献标识码:A 文章编号:1009-9212(2014)03-0061-05 |
|
Immobilization of Salen-Mn and Its Application to Catalytic Epoxidation |
ZHOU Jian-bo, ZENG Ming, LIAO Hui-ying, CUI Xiao-ying
(Changsha Medical University, Changsha 410219, China) |
Abstract:HMS(NH2), HMS-PAMAM(G0), HMS-PAMAM(G1) and HMS-PAMAM(G2) were separately used as the carriers for the immobilization of Salen-Mn and their applications in the epoxidation of E-stilbene were studied. The results showed that the catalytic activities increased by increasing HMS-PAMAM, but TOF reduced, the heterogeneous catalysts were stable and can be recycled. FT-IR, TG-DSC and titration were applied for the characterization of the catalysts |
Key words:HMS-PAMAM; Salen-Mn; immobilization; epoxidation |
|
基金项目:湖南省教育厅基金资助项目(13C0455)。
|
作者简介: 周建波(1979-),女,湖南衡阳人,讲师,主要从事不对称催化合成(E-mail:229530464@qq.com)。
|
收稿日期: 2014-03-2
|
|