Used as a coupling agent in polymer chemistry, particularly in anionic polymerization, where it helps link polymer chains by reacting with active chain ends. It is valued for creating block copolymers with controlled architecture. Also employed in surface modification of fillers and nanoparticles to improve dispersion in polymer matrices. Its reactivity allows for functionalization of polymers, enhancing adhesion, compatibility, and mechanical properties in composite materials. Additionally, it serves as a monomer in specialty coatings and adhesives requiring enhanced thermal and chemical resistance.