Recommanded Product: 3-(4-Aminophenoxy)aniline《Kinetic study of copolymerized PMIA with ether moiety under air pyrolysis》 was published in 2020. The authors were Li, Na;Zhang, Xingke;Yu, Junrong;Wang, Yan;Zhu, Jing;Hu, Zuming, and the article was included in《Journal of Thermal Analysis and Calorimetry》. The author mentioned the following in the article:
Copolymerized poly(m-phenylene isophthalamide) (co-PMIA) was synthesized by solution polycondensation using m-phenylenediamine and isophthaloyl dichloride and 3,4′-oxydianiline (3,4′-ODA). This paper described the preparation and characterization of the copolymers from various contents 3,4′-ODA to afford co-PMIA with ideal high mol. mass. The copolymer showed excellent thermal stability with the glass transition temperature of 267°C and the onset decomposition temperature (5% mass loss) of 445°C. The thermal degradation of co-PMIA was measured with various thermal anal. techniques; the pyrolysis products were obtained and analyzed under air atm. The possible thermal decomposition mechanism of co-PMIA was discussed. The present pyrolysis was investigated using TG under air atm. at four different heating rates (5-20°C min-1). Three different kinetic methods, the iso-conversional Ozawa-Flynn-Wall and Kissinger and Crane methods were applied on TG data of co-PMIA to calculate the kinetic parameters including activation energy, pre-exponential factor and reaction order.3-(4-Aminophenoxy)aniline (cas: 2657-87-6) were involved in the experimental procedure.
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. Recommanded Product: 3-(4-Aminophenoxy)aniline 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