In the realm of advanced materials, the precise selection of monomers is crucial for achieving desired properties. 1,4-Bis(4-aminophenoxy)benzene, identified by its CAS number 3491-12-1, is a pivotal diamine monomer that plays a significant role in the synthesis of high-performance polymers, most notably polyimides.

Understanding 1,4-Bis(4-aminophenoxy)benzene (CAS 3491-12-1)

This aromatic diamine, characterized by its unique structure featuring two amine groups linked by ether and phenylene units, serves as an essential building block. Its chemical formula, C18H16N2O2, and molecular weight of approximately 292.33 g/mol, contribute to its reactivity and the properties of the polymers it forms. Typically appearing as an off-white to light yellow powder with a melting point around 172-173°C, its consistency and high purity (often exceeding 99%) are highly valued by researchers and industrial manufacturers.

Key Applications in Polymer Science

The primary application driving the demand for 1,4-Bis(4-aminophenoxy)benzene lies in its use as a co-monomer with dianhydrides to produce polyimides. These polymers are renowned for their exceptional thermal stability, mechanical strength, electrical insulation properties, and resistance to chemicals and radiation. Consequently, polyimides derived from this monomer are indispensable in sectors such as:

  • Aerospace: For lightweight, high-strength components that withstand extreme temperatures.
  • Electronics: As dielectric films, insulating layers, and flexible substrates for advanced circuitry and displays.
  • Filtration: In the development of high-performance nanofiltration membranes for water purification and chemical separation due to their robustness.
  • Automotive: For parts requiring high heat resistance and durability.

The phenyl ether linkages within the structure impart flexibility and processability to the resulting polyimides, bridging the gap between extreme performance and practical application. When sourcing this material, buyers often look for suppliers offering high-purity grades of CAS 3491-12-1 to ensure the integrity of their polymer synthesis.

Sourcing and Usage Considerations

For procurement professionals seeking to buy 1,4-Bis(4-aminophenoxy)benzene, it is vital to partner with reliable chemical suppliers who can guarantee consistent purity and timely delivery. Manufacturers in China are often a go-to source for these specialized intermediates, offering competitive pricing structures. Always verify the CAS number (3491-12-1) and inquire about the typical properties such as appearance, melting point, and purity levels when requesting a quote.

The strategic use of 1,4-Bis(4-aminophenoxy)benzene as a diamine monomer empowers the creation of next-generation materials. Its contribution to polymers capable of withstanding harsh conditions makes it an invaluable component in modern material science and manufacturing. Researchers and product developers seeking to innovate in these fields should prioritize sourcing this high-quality chemical intermediate.