CAS · 119389-05-8
Product Overview
4-(Phenylethynyl)phthalic anhydride is a high-purity pharmaceutical-intermediates supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.
Product Specifications
| Appearance | Off-white to white powder |
|---|---|
| Purity (HPLC) | 99.9% min |
| Loss on drying | 0.5% max |
Applications
4-(Phenylethynyl)phthalic anhydride is primarily used as a high-performance monomer and reactive intermediate in polymer chemistry and advanced material development. It is widely applied in the synthesis of polyimides, thermosetting resins, and high-temperature composite materials due to its ability to introduce rigid aromatic and ethynyl functionalities into polymer backbones. The compound is also employed in the preparation of specialty coatings, adhesives, and films that require excellent thermal stability, chemical resistance, and mechanical strength. In research and development, it is used to explore crosslinking reactions, polymer network formation, and structure–property relationships in high-performance materials. Additionally, it serves as a building block in the design of functional polymers for aerospace, electronics, and industrial applications where durability and performance under extreme conditions are critical.
Benefits
The compound offers several advantages due to its reactive anhydride group and phenylethynyl substituent. Its high thermal reactivity supports efficient curing and crosslinking, enabling the formation of robust polymer networks with enhanced mechanical and thermal properties. The rigid aromatic structure contributes to improved dimensional stability, chemical resistance, and strength in final materials. Its solubility in common organic solvents facilitates processing, formulation, and handling during synthesis. Additionally, the compound's well-defined structure allows predictable reaction behavior, ensuring reproducibility in both laboratory-scale and industrial polymerization processes. These properties make it a reliable intermediate for the production of high-performance materials.
Conclusion
4-(Phenylethynyl)phthalic anhydride is a valuable reactive monomer used extensively in the synthesis of high-performance polymers, coatings, and composites. Its applications in thermosetting resins and advanced material development, together with benefits such as thermal reactivity, mechanical robustness, and processability, make it an important component in aerospace, electronics, and industrial material research. The compound continues to support the design and production of durable, high-performance polymeric systems.
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