4,4-(4,4-Isopropylidenediphenoxy)bis(phthalic anhydride)

4,4-(4,4-Isopropylidenediphenoxy)bis(phthalic anhydride) is a high-purity adhesives-sealants supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.

1. High-Performance Polyimides

The most prominent application of this compound is as a dianhydride monomer in the synthesis of polyimides:

● Polyimides made from this compound exhibit excellent thermal stability, mechanical strength, chemical resistance, and electrical insulation properties.

● These materials are used in:
Flexible printed circuit boards
Semiconductor manufacturing
Aerospace insulation materials
Display and solar cell films

Its bulky, rigid structure imparts good film-forming characteristics while maintaining high-temperature performance.

2. Advanced Coatings and Varnishes

● Acts as a base component for producing high-temperature resistant coatings and varnishes, particularly in electronics, automotive, and aerospace industries.

● Used in powder coatings that need to withstand prolonged thermal or chemical exposure.

3. Composite Materials

● Essential for producing high-performance resins used in carbon fiber-reinforced composites.

● These composites are used in aircraft parts, spacecraft structures, and sports equipment, offering a superior strength-to-weight ratio.

4. Electronic & Electrical Insulation Materials

● Incorporated into dielectric materials and encapsulation compounds for integrated circuits (ICs), transistors, and microprocessors.

● Ensures long-term stability and insulation under electrical and thermal stress.

✅ Thermal and Oxidative Stability

Polyimides derived from this compound can withstand temperatures above 250°C, making them ideal for high-temperature applications.

✅ Excellent Dielectric Properties

Its use in polymers results in materials with low dielectric constants and loss, suitable for high-frequency electronics.

✅ Dimensional Stability

The rigid structure prevents warping or deformation, even under harsh environmental conditions.

✅ Good Solubility in Organic Solvents (as a Monomer)

Facilitates easier processing during the manufacture of polyimide films and coatings.

✅ Customizable Polymers

Its integration allows tuning of mechanical, thermal, and optical properties by pairing with different diamines during polyimide synthesis.

Conclusion

4,4-(4,4-Isopropylidenediphenoxy)bis(phthalic anhydride)丨CAS 38103-06-9 is a specialty dianhydride that serves as a critical monomer in the development of high-performance polyimide materials. Its unique molecular architecture imparts a balance of rigidity, thermal resistance, and processability, making it indispensable in electronics, aerospace, and advanced composite industries. As demand grows for lightweight, heat-resistant materials, this compound continues to play a central role in cutting-edge material science.

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A concise summary and suitability assessment for this product is available on request. Contact our team to discuss whether it fits your process and quality requirements.