2-oxotetrahydrofuran-3-carbonyl acrylate

　　Core Application Areas and Functional Value

　　1. Photoresists and Microelectronic Materials

　　ArF/krF Photoresist Monomers: When compounded with adamantyl acrylate, they can regulate the dissolution rate of the resin in developer. The polarity of the tetrahydrofuran ring helps enhance the adhesion of the photoresist to the silicon wafer substrate, while the ketone carbonyl group can enhance the dissolution contrast between exposed and unexposed areas through acid-catalyzed reactions (contrast can reach above 4.0), making it suitable for photoresist formulations in the 90-130 nm process.

　　Electronic Packaging Materials: Participating in epoxy resin modification as a crosslinking monomer, it can reduce the dielectric constant of the packaging material (ε≈3.2) and improve high-frequency signal transmission efficiency, suitable for 5G base station chip packaging.

　　2. Functional Coatings and Adhesives

　　High-Adhesion Coatings: When copolymerized with polyurethane acrylate, the resulting coating exhibits adhesion to metals (such as aluminum, copper) (cross-cut test grade 0) significantly superior to ordinary acrylate coatings, and salt spray resistance (500 hours without rust) is improved by 30%, suitable for corrosion protection in marine engineering.

　　UV-Curable Adhesives: Adding 5-15% OTFA can improve the flexibility of the adhesive layer (elongation at break reaches 150%) while maintaining high shear strength (>15 MPa), used for interlayer bonding in flexible electronic devices.

　　3. Biomedical Materials

　　Degradable Hydrogels: Copolymerized with polyethylene glycol diacrylate (PEGDA) to construct pH-responsive hydrogels (swelling rate increases by 200% at pH<5), used for drug targeted release systems in tumor microenvironments (weakly acidic).

　　Tissue Engineering Scaffolds: Forming porous scaffolds through double bond polymerization, the hydrophilicity of the tetrahydrofuran ring can promote cell adhesion (cell viability > 90%), suitable for cartilage tissue repair.