Poly(ethylene glycol) diglycidyl ether is widely used as a crosslinking agent in the production of polymers and resins. It is particularly valuable in the creation of epoxy resins, where it enhances flexibility and durability. This chemical is also employed in the modification of surfaces to improve adhesion properties, making it useful in coatings and adhesives. In biomedical applications, it serves as a linker for attaching biomolecules to surfaces, which is crucial in the development of biosensors and drug delivery systems. Additionally, it is utilized in the synthesis of hydrogels, which are applied in wound healing and tissue engineering due to their biocompatibility and water-absorbing capabilities.