2-Hydroxy-3-phenoxypropyl acrylate, identified by CAS number 16969-10-1, is a specialized monofunctional acrylate monomer characterized by the presence of both a hydroxyl group and a phenoxy ether linkage. This chemical structure imparts a unique balance of polarity and aromatic character, making it a versatile building block in polymer chemistry. As a clear to pale yellow liquid, it exhibits low volatility and a relatively high boiling point, facilitating its use in various industrial formulations where stability and controlled reactivity are paramount.
In industrial and research contexts, this monomer is valued for its ability to undergo rapid polymerization via free-radical mechanisms, particularly under ultraviolet (UV) or electron beam (EB) radiation. The incorporation of the phenoxy group enhances the refractive index of resulting polymers, while the pendant hydroxyl group provides sites for further chemical modification or hydrogen bonding, which significantly improves substrate wetting and adhesion. Proper handling requires standard precautions for acrylate esters, including protection from light and heat to prevent premature polymerization.