有关“自动加速效应”问题的总结与讨论

Summary and Discussion of Auto-acceleration Effect

自动加速效应是自由基聚合宏观动力学的重要特征,对聚合过程和聚合产物有着重要的影响;有关自动加速效应的内容也是自由基聚合动力学教学的重难点之一。为帮助学生较好地理解和掌握自动加速效应相关内容,本文结合有关高分子化学教材,对自动加速效应的实验现象、与体型缩聚凝胶化过程的区别、产生原因、结果和影响因素等问题进行了总结和讨论。

Auto-acceleration effect is one of the important characteristics of radical polymerization macrokinetics, which have great influence on polymerization progress and the synthesized product. The content of auto-acceleration effect is an emphasis and difficulty in the teaching and learning of radical polymerization kinetics. In order to help students understand the related content of auto-acceleration, the experimental phenomena, cause, results generated and influencing factors of auto-acceleration as well as the difference between auto-acceleration effect and the gelation of three dimensional polycondensation were summarized in this paper with reference to relevant polymer chemistry textbooks.