Synthesis and Characterization of Semi-Aromatic Nylon 6I/6T
This article uses hexamethylene diamine,meta phthaloyl chloride,and para phthaloyl chloride as raw materials to prepare poly(meta phthaloyl/para phthaloyl)pentane diamine copolymers(PA6I/6T)through interface polymerization pre polymerization+solid-phase condensation method.The structure of the copolymer was confirmed using Fourier transform infrared spectroscopy and hydrogen nuclear magnetic resonance spectroscopy,and its viscosity was tested using a Ubbelohde viscometer.Based on this,the thermal decomposition temperature and degradation kinetics of the copolymer were analyzed using a thermogravimetric analyzer.The results showed that the relative viscosity of the copolymer was 1.429;The temperature of thermal decomposition is 5％,and the maximum temperature of thermal degradation rate gradually increases with the increase of heating rate;Its thermal degradation mechanism function type is D2(Two-dimensional diffusion,valensi equation).
NETL
NSTL
万方数据
