Mechanical and Self-Healing Properties of Poly Acrylic Acid/Laponite/Fe3+ Nanocomposite Hydrogel

2018 ◽  
Vol 10 (12) ◽  
pp. 1813-1822 ◽  
Author(s):  
Guihua Li ◽  
Xingxiang Ji ◽  
Jinhuan Sun ◽  
Zaiwu Yuan ◽  
Yuexia Wang
Keyword(s):  
Acrylic Acid ◽  
Self Healing ◽  
Nanocomposite Hydrogel ◽  
Poly Acrylic Acid

scholarly journals A conductive self healing polymeric binder using hydrogen bonding for Si anodes in lithium ion batteries

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jaebin Nam ◽  
Eunsoo Kim ◽  
Rajeev K.K. ◽  
Yeonho Kim ◽  
Tae-Hyun Kim
Keyword(s):  
Hydrogen Bonding ◽  
Acrylic Acid ◽  
Lithium Ion Batteries ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Polymer Binder ◽  
Self Healing ◽  
Si Anodes ◽  
Ion Conducting ◽  
Poly Acrylic Acid

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.

Graphene oxide nanocomposite hydrogel based on poly(acrylic acid) grafted onto salep: an adsorbent for the removal of noxious dyes from water

2019 ◽  
Vol 43 (8) ◽  
pp. 3572-3582 ◽  
Author(s):  
Ghasem Rezanejade Bardajee ◽  
Samaneh Sadat Hosseini ◽  
Cedric Vancaeyzeele
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Acrylic Acid ◽  
Cationic Dye ◽  
Nanocomposite Hydrogel ◽  
Poly Acrylic Acid

In this study, a graphene oxide nanocomposite hydrogel (GONH) based on poly(acrylic acid) grafted onto a natural salep polysaccharide was synthesized and investigated as an adsorbent for the removal of cationic dye from aqueous solution.

High-performance poly(acrylic acid) hydrogels formed with a block copolymer crosslinker containing amino-acid derivatives

Soft Matter ◽  
2019 ◽  
Vol 15 (37) ◽  
pp. 7381-7389 ◽  
Author(s):  
Rui Zhang ◽  
Hengzhi Ruan ◽  
Tianxu Zhou ◽  
Qionglong Fu ◽  
Hongwei Peng ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Amino Acid ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Acrylic Acid ◽  
High Performance ◽  
Amino Acid Derivatives ◽  
Self Healing ◽  
Poly Acrylic Acid

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.

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