scholarly journals Self-healing Supramolecular Polymer Composites by Hydrogen Bonding Interactions between Hyperbranched Polymer and Graphene Oxide

2018 ◽  
Vol 36 (5) ◽  
pp. 584-591 ◽  
Author(s):  
Yi-Gang Luan ◽  
Xiao-A Zhang ◽  
Sheng-Ling Jiang ◽  
Jian-Huan Chen ◽  
Ya-Fei Lyu
Author(s):  
Liangliang Xia ◽  
Ming Zhou ◽  
Hongjun Tu ◽  
wen Zeng ◽  
xiaoling Yang ◽  
...  

The preparation of room-temperature self-healing polymeric materials with good healing efficiency and high mechanical strength is challenging. Two processes are essential to realise the room-temperature self-healing of materials: (a) a...


2010 ◽  
Vol 132 (34) ◽  
pp. 12051-12058 ◽  
Author(s):  
Stefano Burattini ◽  
Barnaby W. Greenland ◽  
Daniel Hermida Merino ◽  
Wengui Weng ◽  
Jonathan Seppala ◽  
...  

RSC Advances ◽  
2014 ◽  
Vol 4 (101) ◽  
pp. 57476-57482 ◽  
Author(s):  
Jiali Wang ◽  
Xueli Gao ◽  
Yuhong Wang ◽  
Congjie Gao

Graphene oxide (GO) spongy materials as environmental pollutant scavengers have drawn great attention owing to their ultralarge surface area, unique spongy structure and hydrogen-bonding interactions.


2020 ◽  
Vol 393 ◽  
pp. 124685 ◽  
Author(s):  
Ren'ai Li ◽  
Ting Fan ◽  
Guangxue Chen ◽  
Hujun Xie ◽  
Bin Su ◽  
...  

2019 ◽  
Vol 31 (2) ◽  
pp. 025704 ◽  
Author(s):  
Ying Wang ◽  
Dawei Jiang ◽  
Lu Zhang ◽  
Bin Li ◽  
Caiying Sun ◽  
...  

2021 ◽  
Author(s):  
Yingxian Ma ◽  
Liqiang Huang ◽  
Zhi Zhu ◽  
Yurou Du ◽  
Jie Lai ◽  
...  

Abstract Inspired by non-covalent enhancement mechanism, we introduced glycinamide-conjugated monomer (NAGA) with dual-amide in one side group to amplify the hydrogen bonding interactions. Via one-step free radical polymerization strategy, we prepared a type of supramolecular thickener based on binary polymer. With NMR, FT-IR and SEM results’ help, we determined that PNAGA-AM system had unique bis-amide structure of glycinamide-conjugated monomer. As a result, the synthesized polymer could generate a much denser structure based on the high-ordered multiple hydrogen bonding with lower molecular weight (Mn = 778,400 g/mol), increasing the strength and stability of the chains. PNAGA-AM system had good thickening and temperature-resistant properties. The thickener viscosity of PNAGA-AM(3.0wt%) had twice as much as that of corresponding PAM system. And the viscosity of the 1.5 wt% solution prepared by PNAGA-AM could maintain 74 mPa·s at 150 °C. Meanwhile, the supramolecular system showed excellent salt resistance and self-healing performance with the non-covalent/hydrogen bonding interactions and physical entanglements. The viscosity of the PNAGA-AM system did not drop but increase in high salinity (≤ 300,000 mg/L salinity), and the maximum viscosity could increase nearly 44 % compared with the initial situation. In addition, the self-healing efficiency was over 100 % at 120 °C. Overall, the fracturing fluid system based on PNAGA-AM system could maintain outstanding rheological properties under extreme conditions and showed brilliant recovery performance, to make up the disadvantages of currently used fracturing fluid. It is expected to mitigate potential fluid issues caused by low water quality, harsh downhole temperatures and high-speed shearing.


2016 ◽  
Vol 81 ◽  
pp. 186-197 ◽  
Author(s):  
R. Araya-Hermosilla ◽  
G.M.R. Lima ◽  
P. Raffa ◽  
G. Fortunato ◽  
A. Pucci ◽  
...  

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