4,4-Bis(3-aminophenoxy)biphenyl丨CAS 105112-76-3

4,4-Bis(3-aminophenoxy)biphenyl is primarily used as a key intermediate in the synthesis of high-performance polymers, including polyimides, epoxy resins, and advanced engineering plastics. Its aromatic diamine structure makes it suitable for producing polymers with exceptional thermal stability, mechanical strength, and chemical resistance, which are widely applied in electronics, aerospace, and automotive industries. It is also used in the development of adhesives, coatings, and composite materials that require high heat tolerance and dimensional stability. In research, the compound serves as a model diamine for studying polymerization mechanisms, structure–property relationships, and the design of high-performance aromatic polymers. Its bifunctional amine groups enable efficient crosslinking and polymer chain extension, supporting the production of durable, high-performance materials.

The benefits of 4,4-Bis(3-aminophenoxy)biphenyl arise from its rigid aromatic backbone, bifunctional amino groups, and chemical stability. Its structure imparts high thermal resistance and mechanical strength to polymers, making it suitable for demanding industrial applications where materials are exposed to heat, chemicals, or mechanical stress. The amino groups provide reactive sites for efficient polymerization and crosslinking, enabling high molecular weight and well-defined polymer architectures. Its stability and reproducibility facilitate consistent performance in both laboratory synthesis and industrial production. Additionally, the compound's solubility in common organic solvents allows versatile processing and formulation, supporting the creation of coatings, composites, and films with superior durability and functional performance.