Trimethylvinylammonium bromide is primarily used in the synthesis of polymers and copolymers, particularly in the production of ion exchange resins. These resins are essential in water treatment processes for removing impurities and softening water. Additionally, it serves as a monomer in the creation of specialty polymers with applications in drug delivery systems, where controlled release of pharmaceuticals is required. The compound is also utilized in the development of quaternary ammonium compounds, which are effective as disinfectants and antimicrobial agents in various industrial and healthcare settings. Its role in polymerization reactions makes it valuable in producing materials with specific electrical and mechanical properties for use in advanced technologies.