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《高分子化学》是高分子材料等专业的必修课程,主要以聚合反应机理及反应动力学为主线,以连锁聚合和逐步聚合为两大主要板块。在逐步聚合部分主要以缩聚反应为例讲授逐步聚合特征及一般规律。笔者在缩聚反应部分内容教授的过程中发现了一些学生容易混淆的问题,如缩聚反应中平均聚合度与反应程度定义式中的N与N0、线形缩聚反应与体型缩聚反应体系中的反应程度、缩聚反应公式Xn=k′[A]0t+1中的浓度问题。本文针对教学中的这些问题进行了讨论,介绍了笔者的理解和相关的教学体会,希望利于学生的自学和其他教师的教学。
“Polymer Chemistry” is a compulsory course for polymer materials and other professional, mainly polymerization reaction mechanism and reaction kinetics as the main line to the chain polymerization and gradually polymerization into two major sections. Gradual polymerization in the main part of the polycondensation reaction as an example to teach the gradual polymerization characteristics and the general law. The author in the polycondensation reaction part of the content of the professor found in the process of some students easily confused problems, such as the average polymerization degree of polymerization reaction and the degree of reaction definition of N and N0, linear polycondensation reaction and the size of the polycondensation reaction system reaction, Polycondensation Reaction Formula Xn = k ’[A] 0t + 1 Concentration problem. This article discusses the teaching of these issues, describes the author’s understanding and related teaching experience, hoping to help students learn and other teachers teaching.