Reference Work Entry

Encyclopedia of Polymeric Nanomaterials

pp 636-641


Dynamic Covalent PN (Polymer Nanomaterials)

  • Hideyuki OtsukaAffiliated withDepartment of Organic and Polymeric Materials, Tokyo Institute of Technology Email author 
  • , Tomoyuki OhishiAffiliated withDepartment of Organic and Polymeric Materials, Tokyo Institute of Technology


Reversible covalent polymer nanomaterials


Dynamic covalent polymer nanomaterials are defined as reorganizable and adaptable nanostructured polymeric materials with exchangeable dynamic covalent bonds that are formed reversibly under conditions of equilibrium control. Once these covalent bonds are exposed to appropriate external stimuli such as heat, light irradiation, addition of chemical species, or even in the absence of stimuli in some specific systems, they become reversible and reach an equilibrium state. The nanostructures and constitutions of polymer nanomaterials containing such dynamic covalent bonds can be reformed under the appropriate conditions; therefore, they are applicable to smart polymer nanomaterials such as stimuli-responsive, recyclable, and healable materials.


The physicochemical properties of nanostructured materials that contain reversible covalent bonds and/or supramolecular interactions (non-covalent) are the focus of a significant ...

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