Used as a coupling agent in polymer chemistry, this compound enables the attachment of organic functional groups to inorganic surfaces, particularly silica or glass substrates. Its bromoester group acts as a initiating site for controlled radical polymerization techniques like ATRP (Atom Transfer Radical Polymerization), allowing the growth of well-defined polymer chains from surfaces. This is especially valuable in creating functional coatings, hybrid materials, and surface-grafted polymers with tailored properties such as anti-fouling, hydrophobicity, or responsiveness to stimuli. It is also employed in the synthesis of organic-inorganic composites for advanced materials in electronics, optics, and biomedical devices.