Synthesis and properties of sulfonated poly(phenylene sulfone)s without ether linkage by Diels–Alder reaction for PEMFC application
作者:Youngdon Lim、Hyunchul Lee、Soonho Lee、Hohyoun Jang、Md. Awlad Hossain、Younggil Cho、Taeho Kim、Youngtaik Hong、Whangi Kim
DOI:10.1016/j.electacta.2013.11.190
日期:2014.2
4-bis(2,4,5-triphenylcyclopentadienone)benzene (BTPCPB) and 4,4′-diethynylphenylsulfone, and followed by sulfonation reaction with chlorosulfuric acid. A series of sulfonated poly(phenylene sulfone)s (SPPS) with different degrees of sulfonation was prepared in a controllable manner with chlorosulfuric acid. These polymers showed good solubility in aprotic polar solvents, dimethyl acetamide (DMAC) and dimethyl
通过Diels-Alder聚合反应,由1,4-双(2,4,5-三苯基环戊二烯酮)苯(BTPCPB)和4,4'-二乙炔基苯砜合成一种新型的磺化聚苯砜聚合物(SPPS),然后进行磺化与氯硫酸反应。用氯硫酸可控地制备了一系列磺化度不同的磺化聚苯撑砜(SPPS)。这些聚合物在非质子传递极性溶剂,二甲基乙酰胺(DMAC)和二甲基亚砜(DMSO)中显示出良好的溶解性。三种不同的聚合物膜是由研究11 H NMR光谱和热重分析(TGA)。根据磺化度评估了SPPS的离子交换容量(IEC)和质子电导率。合成SPPS膜的水吸收(WU)从38%〜75%之间,具有用于的Nafion 211 32%变为®在80℃。表现出质子电导率的SPPS膜(在80℃下90%RH)的110.2毫秒/厘米与102.7毫秒/厘米的Nafion为211相比®。功率密度由单电池进行,显示出与Nafion值相似的功率。