Novel polymeric humidity sensors based on sulfonated poly (ether ether ketone)s: Influence of sulfonation degree on sensing properties
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- 作者：Zhuang ZhuangAuthor Vitae ; Yunfeng LiAuthor Vitae ; Duo QiAuthor Vitae ; Chengji Zhao ; zhaochengji@jlu.edu.cnAuthor Vitae ; Hui Na ; huina@jlu.edu.cnAuthor Vitae
- 关键词：Sulfonated poly (ether ether ketone)s ; Humidity sensor ; Water sorption ; Complex impedance
- 刊名：Sensors and Actuators B: Chemical
- 出版年：2017
- 出版时间：April 2017
- 年：2017
- 卷：242
- 期：Complete
- 页码：801-809
- 全文大小：2418 K
- 卷排序：242
文摘
SPEEKs were successfully synthesized by a direct aromatic nucleophilic substitution polymerization of sulfonated monomers. The sensor showed wide operating work range and excellent humidity-sensing properties. The sensor is capable of detecting the small hysteresis (less than 3% RH). Protons and ions contribution contributed to the conductance of the SPEEK polymer in low and high relative humidity according to the complex impedance spectra.