文献类型：期刊文献

英文题名：The polymeric quaternary ammonium salt supported on silica gel as catalyst for the efficient synthesis of cyclic carbonate

作者：Song, Baoning[1];Guo, Li[1];Zhang, Ran[1];Zhao, Xiuge[1];Gan, Huimei[1];Chen, Chen[1];Chen, Jizhong[1];Zhu, Wenwen[1];Hou, Zhenshan[1]

机构：[1]E China Univ Sci & Technol, Res Inst Ind Catalysis, Key Lab Adv Mat, Shanghai 200237, Peoples R China

年份：2014

卷号：6

起止页码：62

外文期刊名：JOURNAL OF CO2 UTILIZATION

收录：;EI(收录号：20142117739292);WOS:【SCI-EXPANDED(收录号:WOS:000349569700010)】；

基金：The authors are grateful for support from the National Natural Science Foundation of China (21373082 and U1179302), the Research Fund for the Doctoral Program of Higher Education of China (20100074110014), and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Polydiallyldimethylammonium; Carbon dioxide; Epoxide; Cycloaddition

摘要：A polymeric quaternary ammonium salt, polydiallyldimethylammonium bromide (PDDA-Br), was supported on silica gel and employed as a recyclable heterogeneous catalyst for the catalytic synthesis of cyclic carbonate. The supported catalysts had been characterized by ET-IR, XRD, TGA and SEM methods. It was observed that PDDA-Br, silica and Lewis acid exhibited strong synergistic effect for the cycloaddition reaction. The addition of Lewis acid like ZnBr2, ZnCl2 and FeCl3 AlCl3 would improve the catalytic activity significantly. Especially, the combination of PDDA-Br with ZnBr2 afforded the most efficient catalyst for the cycloaddition reaction. Silica gel has high BET surface area and allowed good dispersion of PDDA-Br and ZnBr2. Moreover, the as-prepared catalyst was highly stable and leaching-resistance. It could be reused at least 10 times without any loss of activity. (C) 2014 Elsevier Ltd. All rights reserved.