聚合物分子量测定方法的进展  

Advances in molecular weight determination methods for polymers

作　　者：段英慧 Duan Yinghui(Shanxi Chemical Research Institute Co.,Ltd.,Taiyuan 030021,China)

机构地区：[1]山西省化工研究所(有限公司),山西太原030021

出　　处：《化学推进剂与高分子材料》2023年第3期37-41,共5页Chemical Propellants & Polymeric Materials

摘　　要：对化学方法、热力学方法、光学方法、动力学方法、凝胶渗透色谱法等较为传统的测定聚合物分子量的方法进行了概述,认为凝胶渗透色谱法在聚合物分子量的测定上具有周期短、准确度高的优点,且可测定分子量分布,在近年来得到广泛应用。分析了在使用凝胶渗透色谱法时,样品处理过程、色谱条件选择、测试方法对聚合物分子量的测定结果所产生的影响。The traditional methods for determining the molecular weight of polymers,including chemical method,thermodynamic method,optical method,kinetic method,gel permeation chromatography method and so on are summarized.It is considered that gel permeation chromatography method has the advantages of short period and high accuracy in the determination of the molecular weight of polymers,and can determine the molecular weight distribution,and has been widely used in recent years.The influence of sample treatment process,chromatographic conditions selection,test methods on the determination results of the molecular weight of polymers when using gel permeation chromatography is analyzed.

关 键 词：分子量 凝胶渗透色谱 聚合物 分子量分布 

分 类 号：TQ317.2[化学工程—高聚物工业]