Humidity sensing properties of LiCl-loaded porous polymers with good stability and rapid response and recovery
Humidity sensing properties of LiCl-loaded porous polymers with good stability and rapid response and recovery
复制标题
负载LiCl的多孔聚合物的湿度传感性能具有良好的稳定性和快速的响应和恢复能力
DOI:
10.1016/j.snb.2014.03.047
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发表时间:
2014-08
期刊:
影响因子:
--
通讯作者:
Zhang, Tong
中科院分区:
文献类型:
--
作者:
Jiang, Kai;Fei, Teng;Zhang, Tong
A novel porous polymer was synthesized by Friedel-Crafts alkylation polymerization, and the structure and characteristic of the polymer was determined by Fourier transform infrared spectroscopy (FTIR), N2adsorption/desorption analysis, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The obtained polymer was used to prepare humidity sensitive composites by loading LiCl. Compared with the pure polymer, LiCl-loaded composites showed improved humidity sensing properties and the 4 wt% LiCl/polymer sensor showed the best sensing properties. The impedance of the optimum sensor changed near four orders of magnitude over the whole humidity range, with a good linearity, little hysteresis, good stability and short response and recovery times (2 and 7 s, respectively). The complex impedance plots were used to research conductive mechanism.
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