高分子化学线型缩聚反应数均聚合度计算的教学体验和改进

Teaching Experience and Improvement of Calculating the Number Average Degree of Polymerization in the Linear Condensation Polymerization

对高分子化学课程本科教学中有关线型缩聚反应数均聚合度的计算,以及聚合度与官能团过量之间的定性及定量关系进行了讨论。针对现有教学方法易引发学生误解和混淆的情况,定义了新的参数和发展了相应改进的计算方程。新的计算方程的计算过程清晰、参数定义明确、易于学生理解掌握,在实践中取得了良好的教学效果。

The calculating of the degree of polymerization in the linear condensation polymerization,and the teaching experience of the corresponding section for undergraduate students are discussed.It is found that during the teaching,the traditional calculation equation is easy to cause students’misunderstanding and confusion.In this paper,a new parameter is defined and the corresponding calculation equations are developed to make the new equation clear and simple.This new parameter is clearly defined,easy for students to understand and master,and good teaching results have been achieved in the teaching practice.