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聚合物(化学纤维、塑料和橡胶等)降解的研究对于聚合物加工和老化具有重要的实用意义.钱型聚合物的分子由 x 个链节以 x-1个化学键串联结合而成,x 称为链长或聚合度,它的分子量就是 mx,m 为一个链节的分子量.化学结合键的断裂就是降解,每发生一次断裂,一个链长为 x 的分子就分解为两个较小的分子.降解过程数学分析的任务就是研究聚合物分子量随降解程度的变化.由于聚合物通常包含着各种不同链长的分子,所论及的链长和分子量一般是指某种平均值.链长 x 的分子数占聚合物分子总数的
Polymer (chemical fiber, plastic and rubber, etc.) degradation of polymer processing and aging has important practical significance.Mix-type polymer molecules by x chain link with x-1 chemical bonds in series, x Is the chain length or degree of polymerization, its molecular weight is mx, m is the molecular weight of a chain.Chemical bond breakage is degradation, each time a break, a chain length of x molecules will be decomposed into two smaller molecules The task of the mathematical analysis of the degradation process is to study the changes in the molecular weight of a polymer with the degree of degradation.As the polymer usually contains molecules of various chain lengths, the chain length and the molecular weight in question generally refer to some average. The numerator of x is the total number of polymer molecules