Zinc induced polyelectrolyte coacervate bioadhesive and its transition to a self-healing hydrogel

RSC Advances ◽  
2015 ◽  
Vol 5 (82) ◽  
pp. 66871-66878 ◽  
Author(s):  
Weina Wang ◽  
Yisheng Xu ◽  
Ang Li ◽  
Tao Li ◽  
Miaomiao Liu ◽  
...  

High performance Dopa-modified poly(acrylic acid) adhesives formed under the assistance of zinc ions can transform to a self-recovery polymer hydrogel with a pH trigger.

Soft Matter ◽  
2019 ◽  
Vol 15 (37) ◽  
pp. 7381-7389 ◽  
Author(s):  
Rui Zhang ◽  
Hengzhi Ruan ◽  
Tianxu Zhou ◽  
Qionglong Fu ◽  
Hongwei Peng ◽  
...  

Two block copolymers containing amino-acid derivatives were employed as a macro-crosslinker to prepare high performance PAA hydrogels concluding desirable mechanical properties and self-healing abilities, as well as notch-insensitivity.


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.


2018 ◽  
Vol 10 (12) ◽  
pp. 1813-1822 ◽  
Author(s):  
Guihua Li ◽  
Xingxiang Ji ◽  
Jinhuan Sun ◽  
Zaiwu Yuan ◽  
Yuexia Wang

2020 ◽  
Vol 31 (7) ◽  
pp. 1648-1660 ◽  
Author(s):  
Tingting Li ◽  
Xiangming Hu ◽  
Qingsong Zhang ◽  
Yanyun Zhao ◽  
Peng Wang ◽  
...  

2013 ◽  
Vol 4 (17) ◽  
pp. 4601 ◽  
Author(s):  
Zengjiang Wei ◽  
Jie He ◽  
Tony Liang ◽  
Hyuntaek Oh ◽  
Jasmin Athas ◽  
...  

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