Used as a coupling agent in silicone chemistry to introduce reactive vinyl groups onto surfaces or polymers. Enhances adhesion between organic and inorganic materials, especially in sealants, coatings, and composite materials. Serves as a precursor for synthesizing functional siloxane polymers with improved thermal stability and reactivity. Commonly employed in the modification of fillers for silicone rubber to improve dispersion and mechanical properties. Also utilized in surface grafting processes to create water-repellent or low-friction coatings on glass or metal substrates.