title: Mechanical Robust and Self-Healable Supramolecular Hydrogel.
abstract: Development of self-healing polymers with spontaneous self-healing capability and good mechanical performance is highly desired and remains a great challenge. Here, mechanical robust and self-healable supramolecular hydrogels have been fabricated by using poly(2-dimethylaminoethyl methacrylate) brushes modified silica nanoparticles (SiO2 @PDMAEMA) as multifunctional macrocrosslinkers in a poly(acrylic acid) (PAA) network structure. The SiO2 nanoparticles serve as noncovalent crosslinkers, dissipating energy, whereas the electrostatic interactions between cationic PDMAEMA and anionic PAA render the hydrogel self-healing property. This process provides a simple and broadly applicable strategy to produce mechanical strong and self-healable materials.
authors.affiliation: Division of Polymer and Composite Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Science, Ningbo, 315201, P. R. China.
authors.forename: Jing
authors.initials: J
authors.lastname: Zheng
authors.affiliation: Division of Polymer and Composite Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Science, Ningbo, 315201, P. R. China.
authors.forename: Peng
authors.initials: P
authors.lastname: Xiao
authors.affiliation: Division of Polymer and Composite Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Science, Ningbo, 315201, P. R. China.
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.affiliation: Division of Polymer and Composite Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Science, Ningbo, 315201, P. R. China.
authors.forename: Jiawei
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Division of Polymer and Composite Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Science, Ningbo, 315201, P. R. China.
authors.forename: Youju
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Division of Polymer and Composite Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Science, Ningbo, 315201, P. R. China.
authors.forename: Tao
authors.initials: T
authors.lastname: Chen
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry; D019245:Compressive Strength; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry*; D055595:Mechanical Phenomena; D008689:Methacrylates / Q000737:chemistry; D009757:Nylons / Q000737:chemistry; D012235:Rhodamines / Q000737:chemistry; D013696:Temperature; D014867:Water
chemical_list: D000180:Acrylic Resins; D046911:Macromolecular Substances; D008689:Methacrylates; D009757:Nylons; D012235:Rhodamines; C407037:poly(2-(dimethylamino)ethyl methacrylate); D014867:Water; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate; C006903:carbopol 940; C029773:rhodamine B
keywords: polymer brushes; self-healable hydrogels; supramolecular interactions