期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 56, 期 45, 页码 14159-14163出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201708614
关键词
anti-freezing; conductive organohydrogel; hydrogels; self-healing; strain-sensitive
资金
- National Key RAMP
- D Program of China [2017YFA0207800]
- National Natural Science Foundation [21574004]
- 111 project [B14009]
- Fundamental Research Funds for the Central Universities
- National Young Thousand Talents Program
Conductive hydrogels are a class of stretchable conductive materials that are important for various applications. However, water-based conductive hydrogels inevitably lose elasticity and conductivity at subzero temperatures, which severely limits their applications at low temperatures. Herein we report anti-freezing conductive organohydrogels by using an H2O/ethylene glycol binary solvent as dispersion medium. Owing to the freezing tolerance of the binary solvent, our organohydrogels exhibit stable flexibility and strain-sensitivity in the temperature range from -55.0 to 44.6 degrees C. Meanwhile, the solvent molecules could form hydrogen bonds with polyvinyl alcohol (PVA) chains and induce the crystallization of PVA, greatly improving the mechanical strength of the organohydrogels. Furthermore, the non-covalent crosslinks endow the conductive organohydrogels with intriguing remoldability and self-healing capability, which are important for practical applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据