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个人信息Personal Information
教授
博士生导师
硕士生导师
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:膜科学与技术. 化学工程
办公地点:大连理工大学西部校区 化工实验楼D407
大连理工大学盘锦校区 D01 221
联系方式:📱/微信:13940978991
电子邮箱:xuemeiw@dlut.edu.cn
Preparation and Characterization of Poly(vinylidene fluoride)/Sulfonated Poly(phthalazinone ether sulfone ketone) Blends for Proton Exchange Membrane
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论文类型:期刊论文
发表时间:2010-04-15
发表刊物:JOURNAL OF APPLIED POLYMER SCIENCE
收录刊物:SCIE、EI
卷号:116
期号:2
页面范围:852-860
ISSN号:0021-8995
关键字:proton exchange membrane; sulfonated poly(phthalazinone ether sulfone ketone); poly(vinylidene fluoride); blend; fuel cell
摘要:Poly(vinylidene fluoride)/sulfonated poly (phthalazinone ether sulfone ketone) (PVdF/SPPESK) blend membranes are successfully prepared by solution blending method for novel proton exchange membrane (PEM). PVdF crystallinity, FTIR-ATR spectroscopy, thermal stability, morphology, water uptake, dimension stability, and proton conductivity are investigated on PVdF/SPPESK blends with different PVdF contents. XRD and DSC analysis reveal that the PVdF crystallinity in the blends depends on PVdF content. The FTIR-ATR spectra indicate that SPPESK remains proton-conducting function in the blends due to the intactness of -SO(3)H group. Thermal analysis results show a very high thermal stability (T(d1) = 246-261 degrees C) of the blends. PVdF crystallinity and morphology study demonstrate that with lower PVdF content, PVdF are very compatible with SPPESK. Also, with lower PVdF content, PVdF/SPPESK blends possess high water uptake, e.g., P/S 10/90 and P/S 15/85 have water uptake of 135 and 99% at 95 degrees C, respectively. The blend membranes also have good dimension stability because the swelling ratios are at a fairly low level (e.g., 8-22%, 80 degrees C). PVdF/SPPESK blends with low PVdF content exhibit very high proton conductivity, e.g., at 80 degrees C, P/S 15/85 and P/S 10/90 reach 2.6 x 10(-2) and 3.6 x 10(-2) S cm(-1), respectively, which are close to or even higher than that (3.4 x 10(-2) S cm(-1)) of Nafion115 under the same test condition. All above properties indicate that the PVdF/SPPESK blend membranes (particularly, with 10-20% of PVdF content) are very promising for use in PEM field. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 116: 852-860, 2010