Swelling acidic poly(ionic liquid)s as efficient catalysts for the esterification of cyclohexene and formic acid

作     者：Xin Wang Sanguan Ma Bihua Chen Jingshun Zhang Yongya Zhang Guohua Gao Xin Wang;Sanguan Ma;Bihua Chen;Jingshun Zhang;Yongya Zhang;Guohua Gao

作者机构：Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University3663 North Zhongshan RoadShanghai200062China 

出 版 物：《Green Energy & Environment》 (绿色能源与环境（英文版）)

年 卷 期：2020年第5卷第2期

页      面：138-146页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：This work was supported by the National Natural Science Foundation of China(21773068,21811530273,21573072) the National Key Research and Development Program of China(2017YFA0403102) Shanghai Leading Academic Discipline Project(B409) 

主　　题：Acidic poly(ionic liquid)s Swelling Esterification Cyclohexene 

摘      要：Acidic poly(ionic liquid)s(PILs)with swelling ability were synthesized by free radical copolymerization of N-vinylimidazolium ionic liquids,divinylbenzene(DVB)and sodium acrylate(NaAA),and further acidification by sulfuric *** swelling ability of acidic PILs was greatly affected by cross-linker content and chain length of 3-alkyl-substituents on ***-linked network structures could be observed from the cryogenic scanning electron microscopy(cryo-SEM)images of the swollen acidic PILs in formic *** PILs with network structures in swollen state exhibited excellent activities in the esterification of cyclohexene and formic acid,and the catalytic activities were in positive correlation with their swelling *** PIL with 3-octyl-substituent and 2.5 mol%DVB(PIL-C8-2.5DVB-HSO4)had the highest swelling ability in formic acid and exhibited comparable catalytic activities with homogeneous catalysts such as sulfuric acid and p-toluenesulfonic acid.