Editor's Pick 4-phenylethynylphthalic Anhydride (pepa) Mega Pack [L4qEmrXh]

4-Phenylethynylphthalic Anhydride: A Premium Intermediate for Polyimide Synthesis

The 4-Phenylethynylphthalic Anhydride (PEPA) is a high-quality intermediate designed for the synthesis of polyimides, a class of high-performance polymers with exceptional thermal stability and chemical resistance. PEPA's unique chemical structure, featuring a phenylethynyl substituent at the 4-position of the phthalic anhydride backbone, offers numerous advantages in the production of advanced materials. Its ability to undergo thermal-induced radical curing processes makes it ideal for end-capping applications, enhancing the thermal stability of polyimides with a decomposition temperature of up to 591.3 °C. This product is not just a raw material; it is a key component in creating innovative solutions for gas separation membranes and other high-performance polymer applications.

Key Features and Specifications:

• Purity: >99% for guaranteed performance
• Chemical Formula: C₁₆H₈O₃
• Synonyms: 5-(Phenylethynyl)isobenzofuran-1,3-dione, 5-(Phenylethynyl)-2-benzofuran-1,3-dione
• Classification: Anhydride building block, Separation membranes, High-performance polymers

With these specifications, PEPA ensures the highest level of quality and consistency, making it the preferred choice for polymer scientists and engineers seeking to push the boundaries of material science.

Applications of PEPA in Gas Separation and High-Performance Polymers

PEPA's versatility is demonstrated in its ability to modify polymer backbones, particularly in the context of gas separation membranes. When introduced as an imide pendant, PEPA significantly improves the gas permeability of these membranes, making them more effective in separating gases with different molecular sizes. This application is particularly relevant in industries such as energy and environmental protection, where efficient gas separation is crucial for both economic and environmental benefits.

Practical Benefits:

• Enhanced Gas Permeability: Optimizes performance in gas separation applications
• High Thermal Stability: Ensures long-term durability and reliability
• Conjugated Structure: Facilitates Diels-Alder reactions for further material modification

In summary, PEPA is a cutting-edge intermediate that not only supports the development of high-performance polymers but also drives innovation in gas separation technology, providing a solid foundation for future advancements in these critical areas.