High-strength and self-healable poly (acrylic acid) /chitosan hydrogel with organic-inorganic hydrogen bonding networks

Polymer ◽  
2021 ◽  
pp. 124006
Author(s):  
Chenglu Liu ◽  
Lihua Fu ◽  
Tao Jiang ◽  
Yufeng Liang ◽  
Yen Wei
2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jaebin Nam ◽  
Eunsoo Kim ◽  
Rajeev K.K. ◽  
Yeonho Kim ◽  
Tae-Hyun Kim

Abstract A ureido-pyrimidinone (UPy)-functionalized poly(acrylic acid) grafted with poly(ethylene glycol)(PEG), designated PAU-g-PEG, was developed as a high performance polymer binder for Si anodes in lithium-ion batteries. By introducing both a ureido-pyrimidinone (UPy) unit, which is capable of self-healing through dynamic hydrogen bonding within molecules as well as with Si, and an ion-conducting PEG onto the side chain of the poly(acrylic acid), this water-based self-healable and conductive polymer binder can effectively accommodate the volume changes of Si, while maintaining electronic integrity, in an electrode during repeated charge/discharge cycles. The Si@PAU-g-PEG electrode retained a high capacity of 1,450.2 mAh g−1 and a Coulombic efficiency of 99.4% even after 350 cycles under a C-rate of 0.5 C. Under a high C-rate of 3 C, an outstanding capacity of 2,500 mAh g−1 was also achieved, thus demonstrating its potential for improving the electrochemical performance of Si anodes.


2010 ◽  
Vol 43 (6) ◽  
pp. 3018-3026 ◽  
Author(s):  
Shuguang Yang ◽  
Xinfei Yu ◽  
Lian Wang ◽  
Yingfeng Tu ◽  
Joseph X. Zheng ◽  
...  

2018 ◽  
Vol 42 (11) ◽  
pp. 9151-9158 ◽  
Author(s):  
Huijuan Zhang ◽  
Yuran Cheng ◽  
Xinjuan Hou ◽  
Biao Yang ◽  
Fang Guo

A P(AA/AM)–Fe(NO3)3 double crosslinking gel showed a superior tensile strength of 1471 kPa compared to those of all other metal salts tested, which was demonstrated by molecular simulation to result from the stronger hydrogen bonding in this metal–(COO)n complex.


Langmuir ◽  
2002 ◽  
Vol 18 (12) ◽  
pp. 4989-4995 ◽  
Author(s):  
Yu Fu ◽  
Huan Chen ◽  
Dengli Qiu ◽  
Zhiqiang Wang ◽  
Xi Zhang

1999 ◽  
Vol 141 (1) ◽  
pp. 185-195 ◽  
Author(s):  
Marcin Kozanecki ◽  
Jacek Ulański ◽  
Piotr Wojciechowski ◽  
Marian Kryszewski ◽  
Micheline Boudeulle ◽  
...  

2018 ◽  
Vol 6 (48) ◽  
pp. 8105-8114 ◽  
Author(s):  
Tianqi Liu ◽  
Chen Jiao ◽  
Xin Peng ◽  
Ya-Nan Chen ◽  
Yuanyuan Chen ◽  
...  

Super-strong and tough poly(vinyl alcohol)/poly(acrylic acid) hydrogels based on hydrogen bonding are prepared by the strategy of immersing and cold-drawing.


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