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介绍了高分子物理与高分子化学中与分子量调节剂有关的几个概念,包括链转移剂、分子量稳定剂、粘度稳定剂以及封端剂等,分别论述了在加聚反应和缩聚反应中,它们与分子量调节剂的关系、异同以及在高分子化学和物理中的作用。其中,在加聚反应中分子量调节剂与链转移剂是相同的概念,而在缩聚反应中与分子量调节剂相关的概念则比较多,没有统一的定义,由于分子量与粘度的关系密切,因此经常被称为粘度稳定剂。最终,指出在高分子化学与高分子物理课程讲授中综合运用两方面的知识的重要性。
Several concepts related to molecular weight regulators in polymer physics and polymer chemistry are introduced, including chain transfer agent, molecular weight stabilizer, viscosity stabilizer and end-capping agent. In the polyaddition reaction and polycondensation reaction, Their relationship with molecular weight regulators, their similarities and differences, and their role in polymer chemistry and physics. Among them, in the polyaddition reaction, the molecular weight regulator and the chain transfer agent are the same concept, and in the polycondensation reaction with the molecular weight regulator related concepts are more, there is no uniform definition, due to the molecular weight and viscosity are closely related, so often Known as viscosity stabilizer. Finally, it points out the importance of combining two aspects of knowledge in the teaching of polymer chemistry and polymer physics.