Ionic polymer-metal composite actuators obtained from sulfonated poly(ether ether sulfone) ion-exchange membranes

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• 作者：Zhigang Xue ; ^{zgxue@mail.hust.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Yongjun Tang ; Xiaoling Duan ; Yunsheng Ye ; Xiaolin Xie ; Xingping Zhou ; ^{xpzhou@mail.hust.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：A. Smart materials ; B. Interface/interphase ; D. Surface analysis ; B. Strength
• 刊名：Composites Part A: Applied Science and Manufacturing
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：81
• 期：Complete
• 页码：13-21
• 全文大小：4439 K

文摘

The cost-effective and high-performance ionic polymer–metal composites (IPMC) were designed and prepared from ion-exchange membranes based on sulfonated poly(ether ether sulfone) (SPEES) with different degrees of sulfonation (DS). The precursor of SPEES, namely PEES, is commercially available and industrial grade. Moreover, the PEES can be transformed easily into ion-conductive SPEES through a simple sulfonation reaction. The ion exchange capacity (IEC) and water uptake (WU) of SPEES membranes increase with increasing their DS, and the proton conductivities of these hydrated SPEES membranes are subsequently enhanced. Compared with the commercial Nafion ion-exchange membrane, the SPEES membranes have higher IEC and WU. The IPMC actuators made of the SPEES membranes show the large bending strain and fast response under electric stimulation. The SPEES membrane with the highest DS (SPEES4) shows the best performance of IPMC actuators. The electromechanical behaviors of these IPMC actuators indicate that the SPEES is a candidate to substitute Nafion.