A readily self-healing and recyclable silicone elastomer via boron–nitrogen noncovalent crosslinking

2018 ◽  
Vol 42 (23) ◽  
pp. 18517-18520 ◽  
Author(s):  
Jinfeng Cao ◽  
Dongdong Han ◽  
Hang Lu ◽  
Peng Zhang ◽  
Shengyu Feng
Keyword(s):  
Michael Reaction ◽  
Silicone Elastomer ◽  
Self Healing ◽  
One Pot ◽  
Coordination Bonds ◽  
Boron Nitrogen

A self-healing silicone elastomer was synthesized via a one-pot and noncatalytic aza-Michael reaction because boron–nitrogen coordination bonds form reversible crosslinking points.

A silicone elastomer with optimized and tunable mechanical strength and self-healing ability based on strong and weak coordination bonds

2020 ◽  
Vol 11 (24) ◽  
pp. 4047-4057 ◽  
Author(s):  
Ming Tian ◽  
Hongli Zuo ◽  
Jie Wang ◽  
Nanying Ning ◽  
Bing Yu ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Mechanical Strength ◽  
Silicone Elastomer ◽  
Self Healing ◽  
Coordination Bonds ◽  
Weak Coordination

A self-healable silicone elastomer is fabricated based on the synergistic effect of strong and weak coordination bonds.

Self-healing, Highly Elastic and Amphiphilic Silicone-based Polyurethane for Antifouling Coatings

2021 ◽  
Author(s):  
Xiaobin Lin ◽  
Qingyi Xie ◽  
Chunfeng Ma ◽  
Guangzhao Zhang
Keyword(s):  
Mechanical Properties ◽  
Silicone Elastomer ◽  
Self Healing ◽  
Fouling Resistance ◽  
The Poor ◽  
Antifouling Coatings ◽  
Fouling Release

Silicone elastomer coatings have attracted increasing attention owing to its eco-friendly nature, excellent fouling release ability and drag-reducing property. However, the poor mechanical properties and lack of fouling resistance limits...

scholarly journals One-pot synthesis of (1RS,21SR)-diethyl 2-[23-amino-22-ethoxycarbonyl-8,11,14-trioxa-25-azatetracyclo[19.3.1.02,7.015,20]pentacosa-2,4,6,15(20),16,18,22-heptaen-25-yl]but-2-endioate

2018 ◽  
Vol 74 (9) ◽  
pp. 1281-1284
Author(s):  
Thi Thanh Van Tran ◽  
Tuan Anh Le ◽  
Hong Hieu Truong ◽  
Thi Nhung Dao ◽  
Anatoly T. Soldatenkov ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Molecular Conformation ◽  
Michael Reaction ◽  
Biological Activities ◽  
Boat Conformation ◽  
One Pot ◽  
Computer Prediction ◽  
Compound C ◽  
Intramolecular Hydrogen ◽  
The Michael Reaction

The title compound, C30H34N2O9 (4), is a product of the Michael reaction of azacrown ether with dimethyl acetylenedicarboxylate modified by an addition of NH3 (aq.) at 298 K. The aza-14-crown-4-ether ring adopts a bowl conformation. The dihedral angle between the planes of the benzene rings fused to the aza-14-crown-4-ether moiety is 8.65 (5)°. The tetrahydropyridine ring has a boat conformation. The molecular conformation is supported by one N—H...O and two C—H...O intramolecular hydrogen bonds. Both heterocyclic and amino N atoms have essentially planar configurations (sums of the bond angles are 359.35 and 358.00°). Compound 4 crystallizes as a racemate consisting of enantiomeric pairs of the 1R,21S diastereomer. In the crystal, molecules of 4 are connected by N—H...O hydrogen bonds, forming chains along [100]. According to the PASS program (computer prediction of biological activities), compound 4 may exhibit antiallergic (72% probability) and antiasthmatic (67%) activity, as well as be a membrane permeability inhibitor (65%).

Porous boron nitride nanofibers as effective nanofillers for poly(vinyl alcohol) composite hydrogels with excellent self-healing performances

Soft Matter ◽  
2022 ◽  
Author(s):  
Xiangqian Gao ◽  
Tiantian Deng ◽  
Xindi Huang ◽  
Mengmeng Yu ◽  
Danyang Li ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Self Healing ◽  
One Pot ◽  
One Dimensional ◽  
Composite Hydrogels ◽  
Assembly Method

A new composite hydrogels with excellent self-healing properties was prepared by combining poly(vinyl alcohol) (PVA) and boron nitride nanofibers (BNNFs) via a facile one-pot assembly method. One-dimensional porous BNNFs with...

A supramolecular silicone dielectric elastomer with a high dielectric constant and fast and highly efficient self-healing under mild conditions

2020 ◽  
Vol 8 (44) ◽  
pp. 23330-23343
Author(s):  
Haibin Sun ◽  
Xueying Liu ◽  
Suting Liu ◽  
Bing Yu ◽  
Nanying Ning ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Hydrogen Bonds ◽  
High Dielectric Constant ◽  
Dielectric Elastomer ◽  
Supramolecular Network ◽  
Self Healing ◽  
Mild Conditions ◽  
Highly Efficient ◽  
Coordination Bonds ◽  
High Dielectric

A silicone dielectric elastomer with simultaneous high dielectric constant, fast and efficient self-healing ability at mild conditions was prepared by constructing supramolecular network assembled by coordination bonds and hydrogen bonds.

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