【作者】 武艺； 唐卫芬； 王飞龙； 陈荣； 魏凤； 梁璐； 蒋兟； 胡朝霞； 陈守文；

【机构】 南京理工大学环境与生物工程学院；

【摘要】 以双酚芴、4,4-(六氟异丙叉)双酚与4,4-二氟二苯砜为原料,采用亲核取代共聚工艺合成了无规聚芳醚碱共聚物。并以此为原料,经傅克氯甲基化、季铵化及碱化反应制备了一系列用于阴离子交换膜燃料电池的季铵化聚芳醚砜类阴离子交换膜(QPAES)。通过控制傅克氯甲基化反应,得到了一系列具有不同离子交换容量值的QPAES阴离子交换膜,并对膜的离子交换容量、吸水率、尺寸变化以及离子电导率等性能进行了表征。更多还原

【Abstract】 Random poly(aryl ether sulfone) copolymers were prepared from 9,9’-bis(4-hydroxyphenyl) fluorene,4,4’-(hexafluoroisopropylidene) diphenol and 4,4’-difluorodiphenyl sulfone via nucleophilic substitution polymerization,and subsequently used to prepare quaternary ammonium poly(aryl ether sulfone)(QPAES) anion exchange membranes through Freidel-Crafts chloromethylation,amination and alkalization for alkaline anion exchange membrane fuel cell applications.A series of QPAES membranes with different ion exchange capacity were obtained by controlling the degree of chloromethylation during Freidel-Crafts reaction.Properties of the obtained QPAES membranes including ion exchange capacity,water uptake,dimensional changes and ion conductivity were investigated.更多还原