富勒烯交联季铵化聚苯醚阴离子交换膜的制备  

Preparation of fullerene crosslinked quaternized polyphenylene oxide anion exchange membrane

作　　者：刘璇 马溢昌 张秋根[1] 刘庆林[1] LIU Xuan;MA Yichang;ZHANG Qiugen;LIU Qinglin(College of Chemistry&Chemical Engineering,Xiamen University,Xiamen 361005,Fujian,China)

机构地区：[1]厦门大学化学化工学院,福建厦门361005

出　　处：《化工学报》2021年第7期3849-3855,共7页CIESC Journal

基　　金：国家自然科学基金项目(21878253);福建省科技计划项目(2020H0003)。

摘　　要：通过富勒烯C60与乙二胺合成立体纳米分子C60(EDA)8,并以此为交联剂与三阳离子功能化聚苯醚制备了一系列交联型阴离子交换膜。C60(EDA)8中立体纳米结构有效地支撑了高分子链段,构建了更发达的离子通道,有效地提升了电导率。实验结果表明,随着C60(EDA)8加入量增加,交联膜的离子交换容量减小,而电导率却逐渐增加。当交联剂C60(EDA)8加入量为5%时,电导率提高了34%。此外,所制备的离子交换膜均表现出良好的抗溶胀能力、力学性能与耐碱性。In this work, the nano-molecule C60(EDA)_(8 )was synthesized by the fullerene C60 and ethylenediamine, which was used as rigid crosslinking agent to crosslink polyphenylene oxide (PPO) with triple quaternary ammonium groups for the preparation of high-performance anion exchange membranes. With the rigid structure of C_(60)in C_(60)(EDA)_(8), it effectively supports the polymer chain segment and builds a wider ion channel, thereby reducing membrane swelling and improving conductivity. The experimental results show that with the increase of C_(60)(EDA)_(8) input, the ion exchange capacity(IEC) of the cross-linked membrane decreases, but the conductivity gradually increases. When the crosslinking agent C_(60)(EDA)_(8 )is added at 5%, the conductivity of the membrane increases 34%. In addition, the prepared crosslinked membranes all show good swelling resistance, mechanical properties and alkaline stability.

关 键 词：燃料电池 阴离子交换膜 富勒烯 聚苯醚 交联膜 

分 类 号：TQ028.8[化学工程]