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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 精细化工全国重点实验室主任，教育部智能材料化工前沿科学中心执行主任，大连理工大学膜科学与技术研究开发中心主任
性别：女
毕业院校：中国科学院大连化物所
学位：博士
所在单位：化工学院
学科：化学工程. 膜科学与技术. 生物医学工程
联系方式：hgaohong@dlut.edu.cn
电子邮箱：hgaohong@dlut.edu.cn
咪唑季铵化聚醚砜阴离子交换膜的制备与性能表征
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发表时间：2014-01-01
发表刊物：高分子材料科学与工程
期号：6
页面范围：142-146
ISSN号：1000-7555
摘要：Using 1-methylimidazole as quaternary ammonium reagent, a hosts of imidazolium-functionalized PES(PES-ImOH) were successfully synthesized by chloromethylation-menshutkin method. Some important performance was tested, such as ion exchange capacity(IEC), water uptake, swelling ratio and hydroxide conductivity. PES-ImOH membranes with degree of chloromethylation(DC) from 40%~61% show suitable water uptake(24%~80%), and low swelling ratio(15%~44%)at 60°C. With 1.85 mmol/g of IEC, the PES-ImOH73% membrane exhibits high hydroxide conductivity (34 mS/cm at 20°C), and the onset decomposition temperature of PES-ImOH73% membrane is 190°C. All these properties indicate imidazolium-functionalized polyethersulfone is very promising for potential applications in alkaline anion exchange membranes fuel cells.
备注：新增回溯数据