Used as a monomer in the synthesis of functional polymers and copolymers, particularly in specialty resins and coatings. Its vinyl group enables polymerization, while the pyridine ring provides coordination sites for metal ions, making it useful in catalyst supports and chelating materials. Employed in the development of ion-exchange membranes and sensors due to its ability to interact with acids and metal ions. Also finds application in controlled release systems and as a building block in pharmaceutical intermediates where pH-responsive behavior is desired.