Polyimines are classified as polymer materials that contain imine groups, which are characterised by a double bond between a carbon and nitrogen atom.
[1] The term polyimine can also be found occasionally in covalent organic frameworks (COFs).
[7] These amines can perform bond exchange reactions with the polyimine network, and as a result reduce the crosslinking density.
The malleability of the polyimine network enables the e-skin to conform to complex or uneven surfaces without introducing excessive interfacial stresses.
Various studies have been conducted to synthesise bio-based polyimines due the great natural abundance of aldehydes and amines.