引言聚合物是由称之为单体的简单低分子量分子组成的高分子量物质。如果一个聚合物是由两种或两种以上的不同单体组成,这个聚合物就叫做共聚物。共聚物可根据其骨架中单体的序列分成四种类型。 (1)无规共聚物:在此聚合物中单体排列无一定的规律,其分布是完全任意的。如果用A和B来分别代表两种不同的单体,则无规共聚物可表达为: Introduction Polymers are high molecular weight substances made up of simple, low molecular weight molecules called monomers. If a polymer is composed of two or more different monomers, this polymer is called a copolymer. Copolymers can be classified into four types based on the sequence of monomers in their backbone. (1) random copolymer: In this polymer monomer arrangement is not a certain law, its distribution is completely arbitrary. If A and B are used to represent two different monomers, respectively, the random copolymer can be expressed as: