Cas: 2657-87-6 was involved in experiment | Journal of Polymer Research 2018

3-(4-Aminophenoxy)aniline is one of ethers-buliding-blocks. Ethers feature bent C–O–C linkages. In dimethyl ether, the bond angle is 111° and C–O distances are 141 pm. The barrier to rotation about the C–O bonds is low. COA of Formula: C12H12N2O The bonding of oxygen in ethers, alcohols, and water is similar. In the language of valence bond theory, the hybridization at oxygen is sp3.

COA of Formula: C12H12N2O《Influence of different ratios of a-ODPA/a-BPDA on the properties of phenylethynyl terminated polyimide》 was published in 2018. The authors were Yu, Ping;Wang, Yan;Yu, Junrong;Zhu, Jing;Hu, Zuming, and the article was included in《Journal of Polymer Research》. The author mentioned the following in the article:

A series of phenylethynyl-terminated imide oligomers based on 3,4′-oxydianiline (3,4′-ODA), with different content of 2,3,3′,4′-oxydiphthalic dianhydride (a-ODPA) and 2,3,3′,4′-biphenyltetracarboxylic dianhydride (a-BPDA), have been prepared by chem. imidization process. The effects of different dianhydrides ratios on curing behavior, solubility, melt viscosity of oligomers, glass transition temperature (Tg), coefficient of thermal expansion (CTE), thermal stability, mech. performance of films, and adhesive properties were evaluated systematically. The prepared oligomers with more content of a-ODPA exhibited sufficient solubility in some solvents, lower melt viscosity and better adhesion. The cured resins with more content of a-BPDA exhibited lower CTE value, higher Tg and thermal stability in N2 and air atm. The Tg value of the cured a-BPDA/3,4′-ODA/PEPA system (Oligo-5) was 338 °C by tan δ. Meanwhile, the obtained polyimide films based on a-ODPA/a-BPDA monomers possessed high tensile strength (> 98.0 MPa) and strain (> 10.3%). These detailed results may provide some help to choice suitable matrix resin for structural adhesive and high-performance resin-based composite materials. And 3-(4-Aminophenoxy)aniline (cas: 2657-87-6) was used in the research process.

3-(4-Aminophenoxy)aniline is one of ethers-buliding-blocks. Ethers feature bent C–O–C linkages. In dimethyl ether, the bond angle is 111° and C–O distances are 141 pm. The barrier to rotation about the C–O bonds is low. COA of Formula: C12H12N2O The bonding of oxygen in ethers, alcohols, and water is similar. In the language of valence bond theory, the hybridization at oxygen is sp3.

Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem