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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
Highly branched side chain grafting for enhanced conductivity and robustness of anion exchange membranes
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论文类型：期刊论文
发表时间：2018-01-01
发表刊物：IONICS
收录刊物：SCIE、EI、Scopus
卷号：24
期号：1
页面范围：189-199
ISSN号：0947-7047
关键字：Anion exchange membrane; Highly branched side chain; Free volume; Conductivity; Robustness
摘要：As a key component of alkali anion exchange membrane fuel cells, the anion exchange membrane (AEM) needs to have high ionic conductivity and good stability. Herein, highly branched side chain grafted polysulfone AEMs are designed and fabricated via macromolecule-initiated atom transfer radical polymerization of chloromethyl styrene. The highly branched side chain results in increased free volume in the AEM. As a result, the membrane shows significantly improved hydroxide conductivity relative to its un-branched counterpart membrane. Furthermore, the highly branched side chain renders the membrane with better anti-swelling property and improved alkaline stability. These results demonstrate that constructing highly branched side chain architecture is an effective strategy for fabricating AEMs with high conductivity and stability.