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采用React IRTM4000在线红外检测装置和Auto-RC(reaction calorinleter)等温反应量热器对以甲基丙烯酸十八酯、马来酸酐、苯乙烯为原料的三元共聚过程进行了反应动力学研究和热量变化研究。研究结果表明,酯基、酸酐、苯环的吸光度随时间变化基本保持不变;C C键断裂过程中吸光度随时间的变化情况对应了三元加成共聚反应控制区;引发剂发挥引发作用需要一定的诱导期;加成聚合反应有较明显放热区,但是整个反应仍可视为相对平稳、反应温和,从而为合成工艺关键控制参数的确定和优化提供了依据。
React IRTM4000 on-line infrared detector and Auto-RC (Isothermal Calorimetry) is used to study the kinetics of the terpolymerization of stearyl methacrylate, maleic anhydride and styrene Change research. The results showed that the absorbance of ester groups, anhydride and benzene ring basically remained unchanged with time. The change of absorbance with the time of CC bond corresponded to the ternary addition copolymerization reaction zone. The initiator needed to be activated Of the induction period; addition polymerization has a more pronounced exothermic zone, but the entire reaction can still be considered as a relatively smooth, mild reaction, which provides the basis for the determination and optimization of the key control parameters of the synthesis process.