钒电池用季铵化杂萘联苯聚芳醚酮酮阴离子交换膜  

Quaternized Poly(phthalazinone ether ketone ketone) Anionexchange Membrane for All-vanadium Redox Flow Battery

作　　者：张本贵[1] 张守海[1] 邢东博[1] 尹春香[1] 韩润林[1] 蹇锡高[1] 

机构地区：[1]大连理工大学化工学院高分子材料系,辽宁省高性能树脂工程技术研究中心,辽宁省高分子科学与工程重点实验室,大连116024

出　　处：《化学学报》2011年第21期2583-2588,共6页Acta Chimica Sinica

基　　金：国家自然科学基金(No.20604005)资助项目

摘　　要：以氯甲基辛醚为氯甲基化试剂,对杂萘联苯聚芳醚酮酮(PPEKK)进行改性,制备了氯甲基化杂萘联苯聚芳醚酮酮(CMPPEKK).考察了氯甲基辛醚用量对氯甲基化程度的影响.1H NMR表明氯甲基成功引入到聚合物结构中.采用溶液法制备了CMPPEKK基膜,然后将其进行三甲胺胺化,制备了季铵化杂萘联苯聚芳醚酮酮(QAPPEKK)阴离子交换膜.表征了QAPPEKK的基本性能:离子交换容量,含水率,面电阻.QAPPEKK膜的含水率随离子交换容量增加而升高,面电阻随离子交换容量的增加而降低.将QAPPEKK膜应用于全钒液流电池(VRB)中,电池的能量效率达到85.0%,电流效率为98.5%,电压效率为86.3%.Quaternized poly（phthalazinone ether ketone ketone） anion-exchange membranes were prepared from poly（phthalazinone ether ketone ketone） via chloromethylation and quaternization.The effects of chloromethyl octyl ether quantity on degree of chloromethylation（DCM） of chloromethylated poly（phthalazinone ether ketone ketone）（CMPPEKK） were investigated.1H NMR confirmed the structure of CMPPEKK.The properties of anion-exchange membranes with different ion-exchange capacity including water content,area resistance were investigated.The water content of quaternized poly（phthalazinone ether ketone ketone） anion-exchange membrane（QAPPEKK） increased with the increasing of ion exchange ca-pacity.The area resistance of QAPPEKK decreased with the increasing of ion exchange capacity.The en-ergy efficiency of vanadium redox flow battery（VRB） single cell with QAPPEKK membrane reached 85.0%,coulombic efficiency reached 98.5%,and voltage efficiency reached 86.3%.

关 键 词：杂萘联苯聚芳醚酮酮 氯甲基化 季铵化 阴离子交换膜 全钒氧化还原液流电池(VRB) 

分 类 号：TB383.2[一般工业技术—材料科学与工程]