Used as a reactive surfactant and coupling agent in polyurethane systems, enhancing adhesion between organic and inorganic phases. Commonly applied in coatings, sealants, and adhesives to improve flexibility, moisture resistance, and mechanical strength. Also serves as a building block in synthesizing block copolymers for specialty foams and elastomers. Its amine-terminated structure allows direct participation in curing reactions, making it valuable in epoxy formulations and composite materials to increase toughness and impact resistance.