Fluorenyl-containing sulfonated poly(aryl ether ether ketone ketone)s (SPFEEKK) for fuel cell applications ☆
Fluorenyl-containing sulfonated poly(aryl ether ether ketone ketone)s (SPFEEKK) for fuel cell applications ☆
复制标题
DOI：
10.1016/j.memsci.2006.01.004
复制
发表时间：
2006-09
影响因子：
9.5
通讯作者：
Baijun Liu;D. Kim;Jeffrey N. Murphy;G. Robertson;M. Guiver;S. D. Mikhailenko;Serge Kaliaguine;Yi-Ming Sun;Ying-Ling Liu;Juin-Yih Lai
中科院分区：
文献类型：
--
作者：
Baijun Liu;D. Kim;Jeffrey N. Murphy;G. Robertson;M. Guiver;S. D. Mikhailenko;Serge Kaliaguine;Yi-Ming Sun;Ying-Ling Liu;Juin-Yih Lai
通过芳香族亲核取代聚合，合成了一系列含荧基磺化聚芳醚醚酮酮S(SPFEEKK)。磺化单体的投料比控制磺化单体的磺化含量(SC)。通过酸处理，从钠盐形式的铸造膜获得了柔软而坚固的磺酸形式的膜。对其热性能、吸水率、溶胀率、水分状态、氧化稳定性、质子电导率和甲醇渗透性进行了研究。所有聚合物的室温质子电导率均大于1×10−2S/cm，其中m-SPFEEKK-80和p-SPFEEKK-80在100℃时的电导率分别达到1.86×10−1和1.78×10−1S/cm。该系列聚合物在水中具有良好的尺寸稳定性和低甲醇渗透。
A series of fluorenyl-containing sulfonated poly(aryl ether ether ketone ketone)s (SPFEEKK) were synthesized via aromatic nucleophilic substitution polymerization. The sulfonation content (SC) was controlled by the feed ratios of sulfonated and nonsulfonated monomers. Flexible and strong membranes in the sulfonic acid form were obtained from cast membranes in the sodium salt forms by treatment with acid. The thermal properties, water uptake, swelling ratio, water state, oxidative stability, proton conductivity and methanol permeability were investigated. All the polymers had proton conductivities greater than 1×10−2S/cm at room temperature, and the conductivity values of m-SPFEEKK-80 and p-SPFEEKK-80 were up to 1.86×10−1and 1.78×10−1S/cm at 100°C. This series of polymers also possessed good dimensional stability in water and low methanol crossover.