Poly(styrene-co-divinylbenzene) is widely used as a base material for ion exchange resins, which are essential in water purification processes to remove contaminants like heavy metals and other ions. It serves as a robust support matrix in chromatography, particularly in high-performance liquid chromatography (HPLC), for separating and analyzing complex mixtures. Additionally, it is employed in the production of solid-phase extraction (SPE) cartridges, which are used for sample preparation in analytical laboratories. The material’s stability and porosity make it suitable for catalyst supports in various chemical reactions. It is also utilized in the manufacturing of adsorbents for gas and liquid separation processes in industrial applications.