Highly Tough, Stretchable, and Recyclable Ionogels with Crosslink-Enhanced Emission Characteristics for Anti-Counterfeiting and Motion Detecting
作者：Shuai Hao, Chen Yang, Xuemeng Yang, Tianci Li, Lianhua Ma, Yunhong Jiao,* and Hongzan Song*.
關鍵字：luminescent ionogel, coordination bonds, crosslink-enhanced emission, encryption and anti-counterfeiting, wearable sensor
論文來源：期刊
具體來源：ACS Appl. Mater. Interfaces
發表時間：2023年
Traditional luminescent ionogels often suffer from
poor mechanical properties and a lack of recyclability and
regeneration, which limits their further application and sustainable
development. Herein, a luminescent ionogel with strong
mechanical properties and good recyclability has been designed
and fabricated by introducing dynamic coordination bonds via in
situ one-step crosslinking of acrylic acid in ionic liquid of 1-ethyl-3-
methylimidazolium diethylphosphate by zinc dimethacrylate. Due
to the special crosslinking of dynamic coordination bonds along
with the hydrogen bond interaction, the as-prepared ionogel
displays excellent stretchability and toughness, good self-adhesiveness,
fast self-healability, and recyclability. Interestingly, the
obtained ionogels exhibit tunable photoluminescence caused by
the crosslink-enhanced emission (CEE) effect from the coordination bonds. Importantly, ionogels can be applied in information
storage, information encryption, anti-counterfeiting due to their simple and in situ preparation method, and their special fluorescence
performances. Moreover, an ionogel-based wearable sensor has rapid response time and a high gauge factor of 3.22 within a wide
strain range from 1 to 700%, which can monitor various human movements accurately from subtle to large-scale motions. This paper
offers a promising way to fabricate sustainable functional ionic liquid-based composites with CEE characteristics via an in situ onestep
polymerization method.