Used in the synthesis of functional polymers and hydrogels due to its ability to form water-soluble, biocompatible networks. Commonly employed in biomedical applications such as drug delivery systems, contact lenses, and tissue engineering scaffolds. Its hydroxyl group allows for further chemical modification, enabling crosslinking or conjugation with other molecules. Also utilized in coatings and adhesives where improved flexibility and adhesion are required. Frequently incorporated into copolymers to enhance hydrophilicity and reduce protein adsorption on surfaces.