题目：

Highly Stretchable, Fatigue Resistant, Electrically Conductive and Temperature Tolerant Ionogels for High-performance Flexible Sensors

作者：

Jialiang Lai，Hongwei Zhou，Zhaoyang Jin，Shuangli Li，Hanbin Liu，Xilang Jin，Chunyan Luo，Aijie Ma，Weixing Chen

文章信息：

ACS Appl. Mater. Interfaces, Just Accepted Manuscript， https://doi.org/10.1021/acsami.9b10146

论文链接：

https://pubs.acs.org/doi/10.1021/acsami.9b10146

摘要：

Ionogels are ideal candidate materials for flexible sensors, but their stretchability and fatigue resistance are limited. Herein, highly stretchable, fatigue resistant, electrically conductive and temperature tolerant ionogels are investigated and further applied in fabricating high-performance flexible sensors. The ionogels consist of a poly(acrylic acid) (PAA) network and a commonly used room temperature ionic liquid (RTIL) named 1-ethyl-3-methylimidazolium dicyanamide ([EMIm][DCA]). Dually acrylated Pluronic F127 (F127DA) was utilized to crosslink PAA network and [EMIm][DCA] was physically confined in PAA network. Owing to their special crosslinking structure, the PAA ionogels are highly stretchable (>850 %), tough and fatigue resistant, and they are also conductive, transparent and temperature tolerant because of the existence of [EMIm][DCA]. On the basis of their integrated performances, the PAA ionogels were further utilized to fabricate strain sensors and pressure sensors. The ionogel-based strain sensors have high sensitivity, low response time (200 ms), wide strain sensing range (0-750%), excellent durability (>1400 cycles) and good temperature tolerance and can be applied to detect various human motions. The pressure sensors also have high response speed (256 ms) and excellent sensitivity (GF=0.73 kPa-1), which offers an opportunity to detect force generated by finger touching and water droplets.

恭喜赖佳亮同学，再接再厉！

感谢国家自然科学青年基金（No. 51603164）、陕西省高校青年杰出人才计划，陕西省自然科学基础研究计划项目（2019JM-124, 2016JQ5036）、陕西省高校科协青年人才托举计划项目（No. 20170706）对本工作的资助。