Divinylbenzene is primarily used as a crosslinking agent in the production of polymers and resins. It plays a crucial role in the manufacture of ion exchange resins, which are widely used in water purification, chemical processing, and the food and beverage industry to remove impurities and ions. Additionally, divinylbenzene is utilized in the synthesis of polystyrene-based copolymers, which are employed in chromatography for the separation and analysis of complex mixtures. Its ability to form highly crosslinked, durable polymers makes it valuable in the production of specialty plastics, coatings, and adhesives. Furthermore, divinylbenzene is used in the creation of microspheres and beads for applications in drug delivery systems, diagnostics, and biomedical research.