Poly[[(2,4,6-trimethylphenyl)imino][1,1'-biphenyl]-4,4'-diyl]
[CAS# 1333317-99-9]

Identification

• Classification: Organic raw materials >> Aryl compounds >> Biphenyl compounds
• Name: Poly[[(2,4,6-trimethylphenyl)imino][1,1'-biphenyl]-4,4'-diyl]
• Synonyms: PTAA
• Molecular Formula: (C₂₁H₁₉N)_n
• Molecular Weight: 7000-10000
• CAS Registry Number: 1333317-99-9
• SMILES: CC1=CC(=C(C(=C1)C)N(C2=CC=CC=C2)C3=CC=CC=C3)C

Properties

• Melting point: >400 °C

Discovery and Applications

Poly[[(2,4,6-trimethylphenyl)imino][1,1'-biphenyl]-4,4'-diyl] is a polymeric compound that has gained attention due to its unique structure and promising applications in various fields, such as organic electronics and materials science. This polymer consists of a backbone formed by a biphenyl group, with imino functional groups attached to the phenyl rings. These characteristics give the polymer unique electronic properties, making it useful in fields such as light-emitting devices, photovoltaic cells, and organic semiconductors.

The discovery of Poly[[(2,4,6-trimethylphenyl)imino][1,1'-biphenyl]-4,4'-diyl] can be traced back to research in the late 20th century when scientists began exploring new materials for organic electronics. The design of this polymer was driven by the need for materials with better charge transport properties, which are crucial for the development of high-performance organic electronic devices. The incorporation of trimethylphenyl and imino groups into the polymer structure was found to enhance its electronic characteristics, making it a suitable candidate for use in devices that require efficient charge mobility.

The polymer’s unique chemical structure plays a significant role in its properties. The 2,4,6-trimethylphenyl groups provide steric hindrance, which can help stabilize the polymer and reduce unwanted interactions between molecules. The biphenyl backbone contributes to the polymer’s rigidity and its ability to align in thin films, which is essential for applications in electronic devices. Additionally, the imino groups attached to the phenyl rings act as electron-donating groups, further improving the polymer’s conductivity and making it suitable for use in organic semiconductors.

Poly[[(2,4,6-trimethylphenyl)imino][1,1'-biphenyl]-4,4'-diyl] has found several applications, particularly in organic light-emitting diodes (OLEDs) and organic photovoltaic devices (OPVs). In OLEDs, the polymer serves as an active material that emits light when an electrical current is applied. Its high charge carrier mobility and good film-forming properties make it ideal for this application. Similarly, in OPVs, the polymer is used as a donor material, helping to convert light into electrical energy efficiently. The polymer’s ability to facilitate efficient charge transport is key to improving the performance of these devices.

Another important application of Poly[[(2,4,6-trimethylphenyl)imino][1,1'-biphenyl]-4,4'-diyl] is in organic field-effect transistors (OFETs). In these devices, the polymer serves as the semiconductor material, where it plays a crucial role in the transport of charge carriers between electrodes. Its high charge mobility allows for the development of flexible and lightweight transistors, which are essential for the creation of flexible electronic devices and displays.

Despite its many advantages, the use of Poly[[(2,4,6-trimethylphenyl)imino][1,1'-biphenyl]-4,4'-diyl] in commercial applications is still limited by factors such as the cost of production and stability issues over time. Research is ongoing to improve the polymer’s performance and stability, as well as to develop more cost-effective synthesis methods. As these challenges are addressed, it is likely that the polymer will play a more prominent role in the development of next-generation organic electronic devices.

References

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