Poly(ethylene imine )

Poly(ethylene imine) is a synthetic polymer featuring a backbone of carbon atoms with nitrogen-containing amine groups, available in both linear and branched architectures. It is primarily used in water treatment, gene delivery systems, and as a chemical intermediate in coatings and adhesives, where its high charge density and reactive amine groups enable ion exchange, electrostatic binding, and crosslinking. The material is valued for applications requiring high functional group density and chemical reactivity, making it competitive in biomedical and environmental remediation sectors where conventional polymers lack sufficient binding capacity.