Novel acid initiators for the rapid cationic polymerization of styrene in room temperature ionic liquids

作     者：VIJAYARAGHAVAN R. MACFARLANE D. R. 

作者机构：Department of Chemistry Monash University Clayton Campus Victoria 3800 Australia 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2012年第55卷第8期

页      面：1671-1676页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：Centre in Green Chemistry and Catalysis, CGCC Australian Research Council, ARC Monash University, MU 

主　　题：室温离子液体 阳离子聚合 引发剂 苯乙烯 小说 聚合反应 分子量分布 低分子量 

摘      要：Cationic polymerization of styrene has been achieved using several novel acidic initiators in room temperature ionic liquids (ILs) under mild reaction conditions to obtain polymers of low molecular weight with narrow polydispersity. Both strong protic acids such as bis(trifluoromethanesulfonyl) amide acid (HTFSA) and a moderately weak acid such as bisoxalato phosphorous acid (HBOP) have been studied as initiators. It has been observed that HTFSA initiates the polymerization rapidly even at room temperature and below, as compared to HBOP which produces a slower polymerization requiring elevated temperatures to complete. The relative difference in reactivity of the initiators as compared to the previously described HBOB initiator is discussed in terms of the difference in their proton acidity and the consequential basicity of the anions. The efficiency of different ILs as the reaction solvent is also presented.