He Gaohong   

Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates

Title : Director of R & D Center of Membrane Science and Technology

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Language:English

Paper Publications

Title of Paper:SPEEK/P4VP酸碱复合质子交换膜的制备与性能

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Date of Publication:2009-08-15

Journal:高分子材料科学与工程

Included Journals:PKU、ISTIC、CSCD、Scopus、EI

Volume:25

Issue:8

Page Number:126-129

ISSN No.:1000-7555

Key Words:磺化聚醚醚酮;4-乙烯基吡啶;直接甲醇燃料电池;质子交换膜;酸碱复合

Abstract:利用4-乙烯吡啶(4-VP)碱性单体与磺化聚醚醚酮(SPEEK)共混,通过热聚合方法制备了SPEEK/P4VP酸碱复合质子交换膜,并考察了引发剂种类、用量和P4VP添加量对复合膜制备和性能的影响.质量分数为0.2%的偶氮二异丁腈较适宜作为引发剂制备复合膜;P4VP的添加使得复合膜的质子传导率和离子交换容量JEC(IEC=mmol SO3H/g dry membrane)略有下降,但复合膜的吸水率降低,抑制溶胀能力增强,且温度越高,抑制能力越为明显,此外复合膜的阻醇性能和拉伸屈服应力也有所提高,当4-VP的含量在50%(质量分数,下同)时,复合膜的甲醇渗透率与SPEEK和Nafion膜相比分别下降了70%和99%.

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