Low water swelling and high proton conducting sulfonated poly(arylene ether) with pendant sulfoalkyl groups for proton exchange membranes
Low water swelling and high proton conducting sulfonated poly(arylene ether) with pendant sulfoalkyl groups for proton exchange membranes
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DOI：
10.1002/marc.200700452
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发表时间：
2007-12-14
影响因子：
4.6
通讯作者：
Jiang, Zhenhua
中科院分区：
文献类型：
--
作者：
Pang, Jinhui;Zhang, Haibo;Jiang, Zhenhua
以新型磺化单体3-(4-(2，6-difluorobenzoyl)phenyl)propane-1-sulfonate.钠为原料，采用直接共聚法合成了新型侧链型磺化聚芳醚侧链磺化烷基共聚物通过调整磺化和非磺化单体的投料比，可以很容易地控制磺酸盐的含量。所得共聚物均表现出良好的热性能和力学性能。应该指出的是，磺化程度最高的共聚物PSA-SPAE-6F90的离子交换容量为1.30mequiv。G(-1)，表明质子电导率为0.11 S。Cm(-1)，100℃时的吸水膨胀率仅为12.9%，表明其具有高的质子导电性和良好的热水尺寸稳定性。
Novel side-chain-type sulfonated poly(arylene ether) with pendant sulfoalkyl group copolymers (PSA-SPAE-6F) have been synthesized by direct copolymerization from a new sulfonated monomer, sodium 3-(4-(2,6-difluorobenzoyl)phenyl)propane-1-sulfonate. The sulfonate content could be easily controlled by adjusting the sulfonated and the unsulfonated monomer feed ratio. The obtained copolymers all show good thermal and mechanical properties. It should be noted that the most highly sulfonated copolymer, PSA-SPAE-6F90 with an ion exchange capacity of 1.30 mequiv . g(-1), shows a proton conductivity of 0.11 S . cm(-1) and a water swelling ratio of only 12.9% at 100 degrees C, which indicates its high proton conductivity and excellent dimensional stability in hot water.