摘要
通过超酸催化制备了联苯哌啶聚合物主链(PB),并合成了交联剂N^(1),N^(6)-双己烯-N^(1),N^(1),N^(6),N^(6)-四甲基己烷-1,6溴化二铵(HETD),采用高效环保的紫外光固化技术制备了一系列不同HETD含量的交联型聚芳基哌啶阴离子交换膜QPBP-HETD-X%(X=20,40,60和80,其中X为HETD摩尔百分含量)。结果显示,多阳离子交联结构的引入有效提升了膜的机械强度和电化学性能。其中QPBPHETD-60具有较好的综合性能,离子传导率为59.08 mS/cm(80℃),溶胀率仅有4.15%(室温),其拉伸强度高达42.93 MPa,经过60℃下1 mol/L NaOH处理360 h后,离子传导率保存率为84.42%。
In this paper,the poly(biphenyl N-methyl piperidine)(PB)backbone was first synthesized via superacidcatalyzed polycondensation,then the crosslinker N^(1),N^(6)-bishexene-N^(1),N^(1),N^(6),N^(6)-tetramethylhexane-1,6-diammonium bromide(HETD)was prepared.Finally,a series of cross-linked polyaryl piperidine anion-exchange membranes QPBPHETD-X%with different HETD contents(X=20,40,60 and 80,where X represents the molar content of HETD)were prepared using UV cross-linking reactions.The result showed that,the introduction of multi-cation crosslinking structure effectively improves the mechanical strength and electrochemical performance of the membrane.Among them,QPBPHETD-60%has good comprehensive performance,with a ionic conductivity of 59.08 mS/cm(80℃),the swelling rate is only 4.15%(room temperature),the tensile strength is 42.93 MPa,and the conductivity residual is 84.42%after 360 h treatment with 1 mol/L NaOH at 60℃.
作者
黎鹏力
李家欣
邢璨
向柯颖
董爱华
黄圣梅
LI Pengli;LI Jiaxin;XING Can;XIANG Keying;DONG Aihua;HUANG Shengmei(College of material science and engineering,Nanchang Hangkong University,Nanchang Jiangxi 330063,China)
出处
《江西化工》
CAS
2024年第5期37-41,共5页
Jiangxi Chemical Industry
基金
江西省高等学校教学改革研究课题,新工科视域下“CDIO-OBE+翻转课堂”的混合教学模式探索——以《高分子材料综合实验》课程为例(JXJG-22-8-30)
南昌航空大学博士启动金,面向燃料电池高性能阴离子交换膜的性能调控(EA202101189)。
关键词
阴离子交换膜
多阳离子
聚芳基哌啶
光交联
离子传导率
anion exchange membrane
multi-cations
poluarylpiper idine
UV cross-linking
ionic conductivity
