Used as a coupling agent in polymer chemistry, particularly in the synthesis of functionalized polyethylene derivatives. Its hydroxyl groups allow for further chemical modifications, such as esterification or etherification, enabling the creation of tailored surfactants, lubricants, or biocompatible materials. The disulfide bond provides reversible crosslinking capabilities, making it useful in self-healing materials and stimuli-responsive polymers. Also employed in surface modification of nanoparticles, where the disulfide anchors to metal surfaces and the hydroxyl groups extend into the matrix for improved dispersion and interfacial adhesion.