An Injectable Hydrogel with Excellent Self-Healing Property Based on Quadruple Hydrogen Bonding

2016 ◽  
Vol 217 (19) ◽  
pp. 2172-2181 ◽  
Author(s):  
Guangzhao Zhang ◽  
To Ngai ◽  
Yonghong Deng ◽  
Chaoyang Wang
Keyword(s):  
Hydrogen Bonding ◽  
Self Healing ◽  
Injectable Hydrogel ◽  
Healing Property ◽  
Quadruple Hydrogen Bonding

Preparation of polyurethanes with broad damping temperature range and self-healing properties

2019 ◽  
Vol 52 (5) ◽  
pp. 410-431 ◽  
Author(s):  
Xun Lu ◽  
Min Xu ◽  
Ye-ming Sheng ◽  
Zhi-peng Li ◽  
Han-mo Li
Keyword(s):  
Hydrogen Bonding ◽  
Synergistic Effect ◽  
Microphase Separation ◽  
Monomethyl Ether ◽  
Self Healing ◽  
Temperature Range ◽  
Healing Property ◽  
Tan Δ ◽  
C 50 ◽  
Damping Materials

It is urgent for polyurethane (PU) damping materials to broaden the effective damping range. Based on the designability of PU, this study is focused on the role of long dangling chain, wherein prepared by the reaction of polyethylene glycol monomethyl ether with toluene-2,4-diisocyanate. Notably, the introduction of long dangling chain not only makes the dangling chain longer and enhances the intermolecular interaction but also equips the dangling chain with strong polar carbamate group, bringing about more excellent compatibility of the soft and hard segments and lower degree of microphase separation under the condition of hydrogen bonding. The results show that the damping performance increases with the synergistic effect of significant hydrogen bonding and decreased degree of microphase separation, and the effective damping temperature range (tan δ ≥ 0.3) can exceed 150°C (−50°C to 100°C). Simultaneously, the addition of long dangling chains endows PU with self-healing property, the self-healing rate of system reaches maximum 70% with shore A hardness of 15 because of the synergistic effect above with the addition of 60% dangling chain, which extends the service life of PU damping materials.

Study on waterborne self-healing polyurethane with dual dynamic units of quadruple hydrogen bonding and disulfide bonds

Polymer ◽  
2021 ◽  
pp. 123625
Author(s):  
Jinchuang Rong ◽  
Jiang Zhong ◽  
Wanlong Yan ◽  
Maochen Liu ◽  
Yalei Zhang ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Disulfide Bonds ◽  
Self Healing ◽  
Quadruple Hydrogen Bonding

scholarly journals Synthesis and Characterization of Linear Polyisoprene Supramolecular Elastomers Based on Quadruple Hydrogen Bonding

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 110
Author(s):  
Yaoke Ding ◽  
Jincheng Wang ◽  
Shiqiang Song
Keyword(s):  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Anionic Polymerization ◽  
Gel Permeation Chromatography ◽  
Mechanical Analysis ◽  
Synthesis And Characterization ◽  
Self Healing ◽  
Gel Permeation ◽  
Quadruple Hydrogen Bonding

Supramolecular elastomers based on quaternary hydrogen bonding of ureido-pyrimidinone (UPy) groups own special properties such as reversibility, self-healing, and good processability, which can be used in many special fields. In this paper, a novel type of linear polyisoprene supramolecular elastomer (LPSE) was prepared via anionic polymerization by deliberately introducing hydroxyl, isocyanate, and UPy groups into the ends. The formation of supramolecular structure showed significant effects on the microphase structures of LPSE, which was characterized by Fourier-transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), hydrogen nuclear magnetic resonance (1H-NMR), and dynamic mechanical analysis (DMA). Results showed that the introduction of UPy groups played a certain role in the improvement of the thermal stability, toughness, and tensile strength of the elastomer. Moreover, from self-healing tests, the hydrogen bonds of UPy showed dynamic characteristics which were different from covalent sacrificial bonds and exhibited the reassociation phenomenon. This study can not only extend our understanding of the toughening effect of strong hydrogen bonds, but also help us to rationally design new and tough elastomers.

Self-healing and phase behavior of liquid crystalline elastomer based on a block copolymer constituted of a side-chain liquid crystalline polymer and a hydrogen bonding block

2015 ◽  
Vol 3 (33) ◽  
pp. 8526-8534 ◽  
Author(s):  
Miao Yan ◽  
Jun Tang ◽  
He-Lou Xie ◽  
Bin Ni ◽  
Hai-Liang Zhang ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Block Copolymer ◽  
Hydrogen Bonds ◽  
Phase Behavior ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Crystalline Polymer ◽  
Side Chain ◽  
Self Healing ◽  
Healing Property

Self-healing liquid crystalline elastomers were fabricated by hydrogen-bonding and the hydrogen bonds in this system played an important role both in self-healing property and the liquid crystalline phase behavior.

A flexible, self-healing and highly stretchable polymer electrolyte via quadruple hydrogen bonding for lithium-ion batteries

2018 ◽  
Vol 6 (25) ◽  
pp. 11725-11733 ◽  
Author(s):  
Binghua Zhou ◽  
Dan He ◽  
Ji Hu ◽  
Yunsheng Ye ◽  
Haiyan Peng ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Lithium Ion Batteries ◽  
Polymer Electrolyte ◽  
Lithium Ion ◽  
Self Healing ◽  
Highly Stretchable ◽  
Quadruple Hydrogen Bonding

This article reports flexible PEO-based electrolytes with self-healing and highly stretchable properties for lithium-ion batteries.

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