数形结合讲解高分子溶液的相分离
Teaching of Phase Separation of Polymer Solution by Number-shape Combination
范吉昌 1郭福全 1乔玉辉 1胡鹏飞1
作者信息
- 1. 洛阳理工学院材料科学与工程学院,洛阳 471023
- 折叠
摘要
高分子溶液的相分离是高分子物理学习的难点之一.本文推导了高分子溶液发生相分离后混合自由能的变化,应用数学中凸凹函数的图像性质,通过数形结合的方式对高分子溶液的相分离一节进行讲解,绝大多数同学都能很好地理解,取得了较好的教学效果.
Abstract
The content of phase separation of polymer solution is one of the difficulties on polymer physics study.In this paper,the change of free energy of mixing of polymer solution after phase separation is deduced.By using the properties of image of convex and concave function,the section of phase separation of polymer solution is explained by method of number-shape combination,which can be well understood by most students and achieved good teaching effects.
关键词
高分子物理/高分子溶液/相分离Key words
Polymer physics/Polymer solution/Phase separation引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据