2-Hydroxy-3-phenoxypropyl acrylate
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.
• UV/EB Curable Coatings and Inks: This monomer serves as a high-performance reactive diluent in radiation-curable systems. Its ability to reduce viscosity without compromising the final film properties makes it ideal for wood coatings, plastic finishes, and graphic arts inks. The aromatic phenoxy group contributes to improved chemical resistance and hardness, while the hydroxyl functionality enhances adhesion to polar substrates like metals and glass.
• Optical Materials and Adhesives: Due to its high refractive index, 2-Hydroxy-3-phenoxypropyl acrylate is frequently employed in the synthesis of optical-grade polymers and pressure-sensitive adhesives. It helps in formulating clear coatings for displays and lenses where light management is critical. In adhesive applications, it provides an excellent balance of tack and shear strength, ensuring durable bonds in electronic and automotive assemblies.
• Polymer Synthesis and Modification: Beyond direct curing applications, it acts as a functional intermediate in the production of acrylic resins and copolymers. The secondary hydroxyl group allows for the introduction of specific functionalities through esterification or urethane reactions, enabling the creation of tailored graft copolymers or cross-linked networks used in specialty textiles and advanced composite materials.
Product Name: 2-Hydroxy-3-phenoxypropyl acrylate
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