Used as a crosslinking agent in polymer chemistry, particularly in the synthesis of functionalized resins and ion-exchange materials. Its dual vinyl groups enable copolymerization with styrene and other monomers, enhancing network formation in specialty polymers. Also serves as a ligand precursor in organometallic chemistry for catalysis, where the phosphine group coordinates to metal centers, improving catalyst stability and selectivity in reactions like hydrogenation and hydroformylation. Employed in the development of sensors and electronic materials due to its ability to form conjugated systems when incorporated into conductive polymers.