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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : fellow of chinese chemistry society，fellow of chinese chemical engineering society
性别：女
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：高分子材料. 高分子化学与物理. 膜科学与技术
联系方式：0411-84986095（O） Email: zhuxl@dlut.edu.cn
电子邮箱：zhuxl@dlut.edu.cn
Highly hydroxide conducting membranes with long-chain flexible pendant quaternary ammonium groups of PPEK for HEMFC
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论文类型：期刊论文
发表时间：2019-07-01
发表刊物：SOLID STATE IONICS
收录刊物：SCIE、EI
卷号：335
页面范围：121-128
ISSN号：0167-2738
关键字：Polyethers; HEMs; Side chains; Hydroxide conductivity; Alkaline stability
摘要：A series of poly(phthalazinone ether ketone) bearing flexible pendant quaternary ammonium groups (QA-PPEKx) are prepared. The structure of the as-prepared polymers is confirmed by H-1 NMR spectroscopy. The resulting ionomer membranes present good film-forming properties. The QA-PPEK-x membranes showed IECs in range of 1.22-1.62 mmolg(-1), and hydroxide conductivity of 0.044-0.092 &cm(-1) at 80 degrees C. The water uptake of the QAPPEK-x membranes are 20.1-78.2% at 30 degrees C and 30.2-89.7% at 60 degrees C while the swelling ratio are 6.0-21.8% at 30 degrees C and 9.6-37.1% at 60 degrees C, respectively. The morphology of the membranes characterized by atomic force microscope (AFM), showed well-defined microphase separation structure. The resulting QA-PPEK-x membranes demonstrated excellent thermal stability, mechanical properties and alkaline stability.