Introduction

4,4′-Oxydiphthalic Anhydride (ODPA), with the CAS number 1823-59-2, is a versatile chemical compound widely used in the synthesis of high-performance polymers, particularly polyimides. This article explores its properties, applications, safety considerations, and regulatory frameworks.

Properties of 4,4′-Oxydiphthalic Anhydride (ODPA)

Applications of 4,4′-Oxydiphthalic Anhydride (ODPA)

• Polyimide Synthesis: ODPA is commonly used in the synthesis of polyimides, which are known for their excellent solvent resistance, chemical and thermal stability, low moisture absorption, and superior electrical properties. These polyimides are used in various high-performance applications, including supercapacitors, battery anodes, and optoelectronic devices.

• Supercapacitors: Polyimide films made from ODPA exhibit high thermal resistance and high specific capacitance (121 F/g), making them ideal for use as separators in supercapacitors.

• Lithium Batteries: ODPA-based polyimides are used as anodes in lithium batteries due to their ability to dissolve in the electrolyte, maintaining the electrochemical performance of the batteries.

• Metal-Organic Frameworks (MOFs): ODPA can be hydrolyzed and chelated with metal ions (e.g., indium) to form MOFs, which are used in multilevel flexible optoelectronic memory devices. These devices have over 192 distinct levels (6-bit storage) and stable retention times (10,000 seconds).

Safety Considerations

• GHS Classification: GHS05 (Danger)

• Hazard Statements: H412 (Harmful to aquatic life with long-lasting effects)

• Precautionary Statements: P273 (Avoid release to the environment)

• Storage Conditions: Inert atmosphere, room temperature

Regulatory Frameworks

• FDA Regulations: Ensures safety and efficacy in personal care products.

• EPA Guidelines: Provides safety assessments for industrial uses.

• International Standards: Complies with global safety and quality standards.

Market Feedback

ODPA has received positive feedback for its versatility and effectiveness in high-performance applications. Its unique properties make it a popular choice for researchers and manufacturers in the fields of materials science and electronics.

Conclusion

4,4′-Oxydiphthalic Anhydride (ODPA) stands out as a versatile and high-performance chemical compound with a wide range of applications in the synthesis of polyimides and other advanced materials. It offers reliable solutions for enhancing thermal stability, electrical properties, and mechanical strength in various industrial applications.