Enhanced proton conductivity of sulfonated poly(p-phenylene-co-aryl ether ketone) proton exchange membranes with controlled microblock structure
Enhanced proton conductivity of sulfonated poly(p-phenylene-co-aryl ether ketone) proton exchange membranes with controlled microblock structure
复制标题
具有受控微块结构的磺化聚对亚苯基芳基醚酮质子交换膜的增强质子电导率
DOI：
10.1016/j.jpowsour.2014.12.135
复制
发表时间：
2015-03-15
影响因子：
9.2
通讯作者：
Zhang, Suobo
中科院分区：
文献类型：
--
作者：
He, Qingyi;Xu, Tong;Zhang, Suobo
通过镍（0）催化的偶联共聚反应制备了一系列含有不同长度精确界定的疏水单元的新型磺化聚（对亚苯基 - 共 - 芳基醚酮）（s，m，I - SPP - 共 - PAEKs）微嵌段聚合物，并对其进行了表征，以用作质子交换膜。通过控制共聚物中疏水单元的长度和化学结构，这些新型微嵌段聚合物能够呈现出良好的纳米相形态以及较大尺度的离子通道，从而提高了在湿态和干态下的质子传导率。此外，具有最大疏水微嵌段长度的I - SPP - 共 - PAEK 1.80膜表现出高质子传导率、优异的尺寸稳定性、较低的玻璃化转变温度（Tg）、良好的氧化稳定性以及优越的电池性能。（C）2015爱思唯尔有限公司。保留所有权利。
A new series of sulfonated poly(p-phenylene-co-aryl ether ketone)s (s, m, I-SPP-co-PAEKs) microblock polymers containing different hydrophobic units with precisely defined lengths have been prepared via the nickel (0) catalyzed coupling copolymerization and characterized to act as proton exchange membranes. By controlling the length and chemical structure of the hydrophobic units in the copolymers, these novel microblock polymers can exhibit well-developed nanophase morphologies and large length-scale of the ionic channels, resulting in the improvement of the proton conductivity in both the wet and dry state. Moreover, the membrane I-SPP-co-PAEK 1.80 with the largest hydrophobic micro-block length shows high proton conductivity, excellent dimensional stability, low glass-transition temperature (Tg), good oxidative stability and superior cell performance. (C) 2015 Elsevier B.V. All rights reserved.