Used as a reactive silicone-organic hybrid modifier in coatings and adhesives, providing improved flexibility, adhesion, and moisture resistance. The allyl-terminated PEO chain allows for UV or thermal curing via thiol-ene chemistry, making it suitable for crosslinkable hydrophilic films. Frequently employed in specialty formulations requiring surface activity control and biocompatibility, such as in medical device coatings or low-fouling surfaces. Its unique silacyclopentane structure enhances thermal stability and promotes compatibility with silicone-based materials.