Sodium 4-vinylbenzenesulfonate is widely used in the production of polymers and copolymers due to its ability to impart water solubility and ionic properties. It is a key component in the synthesis of ion-exchange resins, which are essential for water purification and desalination processes. The chemical is also employed in the creation of hydrogels, which find applications in medical fields such as drug delivery systems and wound dressings. Additionally, it is used in the manufacture of specialty coatings and adhesives, enhancing their performance in various industrial applications. Its sulfonate group makes it valuable in improving the stability and functionality of polymers in aqueous environments.