Morphological investigations of block sulfonated poly(arylene ether ketone) copolymers as potential proton exchange membranes | |
Zhao, Chengji1; Lin, Haidan1; Li, Xianfeng2; Na, Hui1 | |
刊名 | polymers for advanced technologies
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2011-12-01 | |
卷号 | 22期号:12页码:2173-2181 |
关键词 | block copolymers proton exchange membranes poly(ether ketone) sulfonated |
英文摘要 | a series of block sulfonated poly(arylene ether ketone) (spaek) copolymers with different block lengths and ionic contents were synthesized by a two-stage process. the morphology of these block spaek copolymers was investigated by various methods, such as differential scanning calorimetry (dsc), transmission electron microscope (tem), and small angle x-ray scattering (saxs). dark colored ionic domains of hundreds of nanometers spreading as a cloud-like belt were observed in tem images. the sizes of the ionic domains as a function of block copolymer composition were determined from saxs curves. the results for the evolution of ionic domains revealed that the block copolymers exhibited more clearly phase-separated microstructure with increasing ionic contents and hydrophobic sequence lengths. proton conductivity is closely related to the microstructure, especially the presence of large interconnected ionic domains or ionic channels. block spaek membranes have interconnected ionic clusters to provide continuous hydrophilic channels, resulting in higher proton conductivity. copyright (c) 2010 john wiley & sons, ltd. |
WOS标题词 | science & technology ; physical sciences |
类目[WOS] | polymer science |
研究领域[WOS] | polymer science |
关键词[WOS] | x-ray-scattering ; fuel-cell application ; perfluorinated ionomer membranes ; multiblock copolymers ; conductive membrane ; pems ; lonomers ; nafion |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000298175400081 |
公开日期 | 2015-11-17 |
内容类型 | 期刊论文 |
源URL | [http://159.226.238.44/handle/321008/142666] ![]() |
专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
作者单位 | 1.Jilin Univ, Alan G MacDiarmid Inst, Coll Chem, Changchun 130012, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Proton Exchange Membrane Fuel Cell Key Mat & Tech, Dalian 116023, Peoples R China |
推荐引用方式 GB/T 7714 | Zhao, Chengji,Lin, Haidan,Li, Xianfeng,et al. Morphological investigations of block sulfonated poly(arylene ether ketone) copolymers as potential proton exchange membranes[J]. polymers for advanced technologies,2011,22(12):2173-2181. |
APA | Zhao, Chengji,Lin, Haidan,Li, Xianfeng,&Na, Hui.(2011).Morphological investigations of block sulfonated poly(arylene ether ketone) copolymers as potential proton exchange membranes.polymers for advanced technologies,22(12),2173-2181. |
MLA | Zhao, Chengji,et al."Morphological investigations of block sulfonated poly(arylene ether ketone) copolymers as potential proton exchange membranes".polymers for advanced technologies 22.12(2011):2173-2181. |
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