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制备了高等规度聚丙烯腈(iso-PAN,mm=0.64),测定了高等规度PAN在空气条件下的TG及DSC。从热失重曲线中发现在预氧化温度(300℃以前),有增重现象。研究了其增重动力学,动力学级数为一。
The preparation of high isotactic polyacrylonitrile (iso-PAN, mm = 0.64) was carried out to measure the TG and DSC of high-grade PAN under air. From the weight loss curve found in the pre-oxidation temperature (300 ℃ before), weight gain phenomenon. The weight gain kinetics was studied with a kinetic series of one.