A Robust Self-healing Polyurethane Elastomer Enabled by Tuning the Molecular Mobility and Phase Morphology through Disulfide Bonds

2021 ◽  
Author(s):  
Hai-Tao Wu ◽  
Bi-Qiang Jin ◽  
Hao Wang ◽  
Wen-Qiang Wu ◽  
Zhen-Xing Cao ◽  
...  
Keyword(s):  
Molecular Mobility ◽  
Disulfide Bonds ◽  
Phase Morphology ◽  
Polyurethane Elastomer ◽  
Self Healing

A transparent, highly stretchable, self-healing polyurethane based on disulfide bonds

2019 ◽  
Vol 112 ◽  
pp. 822-831 ◽  
Author(s):  
Kun Chang ◽  
Han Jia ◽  
Shu-Ying Gu
Keyword(s):  
Disulfide Bonds ◽  
Self Healing ◽  
Highly Stretchable

Corrigendum to “Robust, stretchable and photothermal self-healing polyurethane elastomer based on furan-modified polydopamine nanoparticles” [Polymer (2020) 122219]

Polymer ◽  
2020 ◽  
Vol 193 ◽  
pp. 122355
Author(s):  
Shiwen Yang ◽  
Xiaosheng Du ◽  
Zongliang Du ◽  
Mi Zhou ◽  
Xu Cheng ◽  
...  
Keyword(s):  
Polyurethane Elastomer ◽  
Self Healing

Heat-triggered poly(siloxane-urethane)s based on disulfide bonds for self-healing application

2018 ◽  
Vol 135 (31) ◽  
pp. 46532 ◽  
Author(s):  
Xinxiu Wu ◽  
Jinhui Li ◽  
Gang Li ◽  
Lei Ling ◽  
Guoping Zhang ◽  
...  
Keyword(s):  
Disulfide Bonds ◽  
Self Healing

scholarly journals A Robust and High Self‐Healing Efficiency Poly(Urea‐Urethane) Based on Disulfide Bonds with Cost‐Effective Strategy

2019 ◽  
Vol 220 (23) ◽  
pp. 1970046
Author(s):  
Yulong Wang ◽  
Yaqiong Li ◽  
Jingjing Bai ◽  
Zhenzhong Li ◽  
Guosheng Hu
Keyword(s):  
Disulfide Bonds ◽  
Cost Effective ◽  
Self Healing ◽  
Effective Strategy ◽  
Cost Effective Strategy ◽  
Healing Efficiency

A Robust and High Self‐Healing Efficiency Poly(Urea‐Urethane) Based on Disulfide Bonds with Cost‐Effective Strategy

2019 ◽  
Vol 220 (23) ◽  
pp. 1900340 ◽  
Author(s):  
Yulong Wang ◽  
Yaqiong Li ◽  
Jingjing Bai ◽  
Zhenzhong Li ◽  
Guosheng Hu
Keyword(s):  
Disulfide Bonds ◽  
Cost Effective ◽  
Self Healing ◽  
Effective Strategy ◽  
Cost Effective Strategy ◽  
Healing Efficiency

Preparation of high self-healing efficient crosslink HTPB adhesive for improving debonding of propellant interface

2020 ◽  
Vol 44 (44) ◽  
pp. 19184-19191
Author(s):  
Jing Tu ◽  
Heng Xu ◽  
Li Liang ◽  
Pingyun Li ◽  
Xiaode Guo
Keyword(s):  
Disulfide Bonds ◽  
Interface Debonding ◽  
Self Healing

A high self-healing efficient HTPB-based adhesive containing disulfide bonds, which can improve propellant interface debonding defects at a safe temperature.

Molecular dynamics simulation insight into the temperature dependence and healing mechanism of an intrinsic self-healing polyurethane elastomer

2020 ◽  
Vol 22 (31) ◽  
pp. 17620-17631
Author(s):  
Xianling Chen ◽  
Jing Zhu ◽  
Yanlong Luo ◽  
Jun Chen ◽  
Xiaofeng Ma ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Hydrogen Bonds ◽  
Molecular Diffusion ◽  
Healing Process ◽  
The Self ◽  
Dynamics Simulation ◽  
Polyurethane Elastomer ◽  
Self Healing ◽  
Insight Into

The changes in the type and number of hydrogen bonds as well as the microscopic behavior of molecular diffusion in the self-healing process of polyurethane are revealed.

A colorless, transparent and self-healing polyurethane elastomer modulated by dynamic disulfide and hydrogen bonds

2020 ◽  
Vol 44 (15) ◽  
pp. 5746-5754 ◽  
Author(s):  
Xue Wang ◽  
Huijuan Zhang ◽  
Biao Yang ◽  
Liguo Wang ◽  
Hui Sun
Keyword(s):  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Polyurethane Elastomer ◽  
Self Healing ◽  
High Transparency

A self-healing PU elastomer modulated by disulfide and hydrogen bonding with high transparency of 97% was reported.

scholarly journals Self-Healing Photocurable Epoxy/thiol-ene Systems Using an Aromatic Epoxy Resin

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Ricardo Acosta Ortiz ◽  
Omar Acosta Berlanga ◽  
Aída Esmeralda García Valdez ◽  
Rafael Aguirre Flores ◽  
José Guadalupe Télles Padilla ◽  
...  
Keyword(s):  
Disulfide Bonds ◽  
Epoxy Resins ◽  
Room Temperature ◽  
Gel Permeation Chromatography ◽  
Mechanical Analysis ◽  
Hypervalent Iodine ◽  
Self Healing ◽  
Healing Efficiency ◽  
Kinetics Of ◽  
Epoxy Groups

A rapid and efficient method to obtain self-healing epoxy resins is discussed. This method is based on the use of a thiol-disulfide oligomer obtained by partial oxidation of a multifunctional thiol using a hypervalent iodine (III) compound as oxidant. The oligomer was characterized by Fourier transform infrared spectroscopy (FTIR), Raman and nuclear magnetic resonance spectroscopies, and gel permeation chromatography (GPC). The oligomer was a joint component of the thiol-ene system along with a tetra-allyl-functionalized curing agent. The kinetics of the photopolymerization of diglycidylether of bisphenol A (DGEBA) revealed that conversions of the epoxy groups as high as 80% were achieved in only 15 minutes by increasing the concentration of the thiol-ene system in the formulation. The disulfide bonds introduced in the copolymer using the thiol-disulfide oligomer allowed the repairing of the test specimens in as little as 10 minutes when the specimens were heated at 80°C or for 500 minutes at room temperature. The analysis of the mechanical properties using dynamic mechanical analysis (DMA) showed that the specimens displayed a healing efficiency up to 111% compared with the unhealed specimens, depending on the amount of polythioethers present in the copolymer.

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