Choi, Young Chul;Kim, Min Su;Ryu, Kyoung Moon;Lee, Sang Hoon;Jeong, Young Gyu published 《Microstructures and electrothermal characterization of aromatic poly(azomethine ether)-derived carbon films》 in 2020. The article was appeared in 《Journal of Applied Polymer Science》. They have made some progress in their research.Application of 2657-87-6 The article mentions the following:
The authors report the microstructural evolution and electrothermal properties of aromatic poly(azomethine ether) (PAME)-derived C films, which were fabricated by a facile spin-coating and following carbonization at different temperatures of 300-1000°. For the purpose, poly[3-(4-nitrilophenoxy)phenylenenitrilomethine-1,3-phenylenemethine] (mPAME) with a high residue of ∼56.4% after carbonization at 1000° was synthesized for a polymeric precursor for C films. The XPS, Raman spectroscopy, and x-ray diffraction analyses revealed that the mol. structures of mPAME films changed into an intrinsically N-doped graphitic structure, dominantly at the carbonization temperatures of 800-1000°. The elec. conductivity increased considerably from ∼10-7 S/cm, for mPAME-derived films fabricated at 300-700°, to ∼100 S/cm for the film carbonized at 800° to ∼101 S/cm for the films carbonized at 900-1000°. Accordingly, mPAME-derived C films, which were carbonized at 900-1000°, exhibited excellent electrothermal performance, such as rapid temperature responsiveness, high maximum temperatures, and high elec. power efficiency to relatively low applied voltages of 5-13 V. The experimental procedure involved many compounds, such as 3-(4-Aminophenoxy)aniline (cas: 2657-87-6) .
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. Application of 2657-87-6 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