An Easily Accessible Self-Healing Transparent Film Based on a 2D Supramolecular Network of Hydrogen-Bonding Interactions between Polymeric Chains

2016 ◽  
Vol 22 (38) ◽  
pp. 13513-13520 ◽  
Author(s):  
Nabarun Roy ◽  
Željko Tomović ◽  
Eric Buhler ◽  
Jean-Marie Lehn
Keyword(s):  
Hydrogen Bonding ◽  
Supramolecular Network ◽  
Self Healing ◽  
Transparent Film ◽  
Hydrogen Bonding Interactions ◽  
Polymeric Chains

scholarly journals Pentaaqua(1H-benzimidazole-5,6-dicarboxylato-κN3)cobalt(II) pentahydrate

2009 ◽  
Vol 65 (6) ◽  
pp. m702-m702 ◽  
Author(s):  
Wen-Dong Song ◽  
Hao Wang ◽  
Shi-Jie Li ◽  
Pei-Wen Qin ◽  
Shi-Wei Hu
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Organic Ligand ◽  
Octahedral Geometry ◽  
Mononuclear Complex ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Supramolecular Network ◽  
Hydrogen Bonding Interactions ◽  
Distorted Octahedral

In the title mononuclear complex, [Co(C9H4N2O4)(H2O)5]·5H2O, the CoIIatom exhibits a distorted octahedral geometry involving an N atom of a 1H-benzimidazole-5,6-dicarboxylate ligand and five water O atoms. A supramolecular network is generated through intermolecular O—H...O hydrogen-bonding interactions involving the coordinated and uncoordinated water molecules and the carboxyl O atoms of the organic ligand. An intermolecular N—H...O hydrogen bond is also observed.

A room-temperature self-healing elastomer with ultra-high strength and toughness fabricated via optimized hierarchical hydrogen-bonding interactions

2022 ◽  
Author(s):  
Liangliang Xia ◽  
Ming Zhou ◽  
Hongjun Tu ◽  
wen Zeng ◽  
xiaoling Yang ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Mechanical Strength ◽  
Room Temperature ◽  
Polymeric Materials ◽  
High Strength ◽  
Self Healing ◽  
High Mechanical Strength ◽  
Hydrogen Bonding Interactions ◽  
Healing Efficiency ◽  
Good Healing

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...

Highly transparent, self-healing conductive elastomers enabled by synergistic hydrogen bonding interactions

2020 ◽  
Vol 393 ◽  
pp. 124685 ◽  
Author(s):  
Ren'ai Li ◽  
Ting Fan ◽  
Guangxue Chen ◽  
Hujun Xie ◽  
Bin Su ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Self Healing ◽  
Hydrogen Bonding Interactions ◽  
Conductive Elastomers

A Supramolecular Thickener Based on Non-Covalent Enhancement Mechanism

2021 ◽  
Author(s):  
Yingxian Ma ◽  
Liqiang Huang ◽  
Zhi Zhu ◽  
Yurou Du ◽  
Jie Lai ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
High Speed ◽  
Salt Resistance ◽  
Supramolecular System ◽  
Self Healing ◽  
Fracturing Fluid ◽  
Enhancement Mechanism ◽  
Binary Polymer ◽  
Hydrogen Bonding Interactions ◽  
One Step

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.

scholarly journals Intrinsic self-healing thermoset through covalent and hydrogen bonding interactions

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

scholarly journals Three New Supramolecular Coordination Polymers Based on 1H-pyrazolo[3,4-b]pyridin-3-amine and 1,3-benzenedicarboxylate Derivatives

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 819 ◽  
Author(s):  
Yun Xu ◽  
Qing-Hua Deng ◽  
Fang Ding ◽  
Ran An ◽  
Dong Liu ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Coordination Polymers ◽  
Supramolecular Network ◽  
Photoluminescence Properties ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hydrogen Bonding Interactions ◽  
Sheet Structure ◽  
Supramolecular Coordination ◽  
Solvothermal Conditions

Three new supramolecular coordination polymers, namely [Zn(1,3-BDC)(HL)]n (Polymer 1), [Zn3(1,3,5-BTC)2(HL)2(H2O)2]n (Polymer 2), and [Zn9(5-SO3-1,3-BDC)2(L)8(OH)4]n (Polymer 3), were synthesized under solvothermal conditions, based on 1H-pyrazolo[3,4-b]pyridin-3-amine (HL) along with 1,3-benzenedicarboxylate (1,3-BDC) and its derivatives, such as 1,3,5-benzenetricarboxylate (1,3,5-BTC) and 5-sulfo-1,3-benzenedicarboxylate (5-SO3-1,3-BDC). Polymers 1–3 were characterized by elemental analysis, IR spectroscopy, powder X-ray diffraction (PXRD), and single crystal X-ray diffraction analysis. Polymer 1 exhibited a two-dimensional (2D) 4-connected sql net. The neighboring 2D nets were further linked into a 3D supramolecular network by hydrogen-bonding interactions. Polymer 2 displayed a 3D (4, 4, 4)-connected network, which was further stabilized by R 2 2 (14) and S(9) hydrogen-bonding rings along with π–π interactions. The 2D sheet structure of Polymer 3 was constructed by novel quasi-linear nonanuclear Zn(II) units, which further extended into a 3D supramolecular structure by hydrogen-bonding interactions. The solid-state photoluminescence properties of Polymers 1–3 were also investigated.

scholarly journals Assembly of miscible supramolecular network blends using DDA·AAD hydrogen-bonding interactions of pendent side-chains

2020 ◽  
Vol 11 (21) ◽  
pp. 3593-3604
Author(s):  
Heather M. Coubrough ◽  
Matthew Reynolds ◽  
James A. Goodchild ◽  
Simon D. A. Connell ◽  
Johan Mattsson ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Methyl Methacrylate ◽  
Supramolecular Network ◽  
Side Chains ◽  
Poly Methyl Methacrylate ◽  
Hydrogen Bonding Interactions ◽  
Miscible Blends

Miscible blends of poly(methyl methacrylate) and polystyrene polymers are assembled through triple hydrogen bonding between complementary ureidoimidazole and amidoisocytosine heterodimers.

scholarly journals catena-Poly[[dichloridomercury(II)]-N′-nicotinoylnicotinohydrazide]

2012 ◽  
Vol 68 (4) ◽  
pp. m367-m367 ◽  
Author(s):  
Teng Ma ◽  
Yuanlu Wang ◽  
Fengliang Wang ◽  
Fei Li
Keyword(s):  
Hydrogen Bonding ◽  
Three Dimensional ◽  
Chloride Ions ◽  
Title Complex ◽  
Tetrahedral Geometry ◽  
Distorted Tetrahedral Geometry ◽  
Hydrogen Bonding Interactions ◽  
Dimensional Network ◽  
Polymeric Chains

The title complex, [HgCl2(C12H10N4O2)]n, is composed of one HgIIion, one nnh ligand (nnh =N′-nicotinoylnicotinohydrazide) and two coordinated chloride ions. The HgIIion shows a distorted tetrahedral geometry, being surrounded by two N atoms from two nnh ligands and two chloride ions. Due to the bridging role of nnh, the HgIIatoms are connected into polymeric chains along thecaxis, which are further interlinkedviaN—H...O and C—H...Cl hydrogen-bonding interactions, forming a three-dimensional network.

scholarly journals Crystal structure of bis[bis(4-azaniumylphenyl) sulfone] tetranitrate monohydrate

2017 ◽  
Vol 73 (11) ◽  
pp. 1721-1725 ◽  
Author(s):  
Amani Hind Benahsene ◽  
Lamia Bendjeddou ◽  
Hocine Merazig
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Water Molecule ◽  
Three Dimensional ◽  
Dihedral Angles ◽  
Supramolecular Network ◽  
Nitrate Salt ◽  
Hydrogen Bonding Interactions ◽  
Benzene Rings ◽  
Ring Centroid

In the title compound, the hydrated tetra(nitrate) salt of dapsone (4,4′-diaminodiphenylsulfone), 2C12H14N2O2S2+·4NO3−·H2O {alternative name: bis[bis(4,4′-diazaniumylphenyl) sulfone] tetranitrate monohydrate}, the cations are conformationally similar, with comparable dihedral angles between the two benzene rings in each of 70.03 (18) and 69.69 (19)°. In the crystal, mixed cation–anion–water molecule layers lying parallel to the (001) plane are formed through N—H...O, O—H...O and C—H...O hydrogen-bonding interactions and these layers are further extended into an overall three-dimensional supramolecular network structure. Inter-ring π–π interactions are also present [minimum ring centroid separation = 3.693 (3) Å].

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