精选优质文档-倾情为你奉上A 高分子化学和高分子物理UNIT 1 What are Polymer?第一单元 什么是高聚物？What are polymers? For one thing, they are complex and giant molecules and are different from low molecular weight compounds like, say, common salt. To contrast the difference, the molecular weight of common salt is only 58.5, while that of a polymer can be as high as several hundred thousand, even more than thousand thousands. These big molecules or macro-molecules are made up of much smaller molecules, can be of one
