聚合物分子量测量方法研究进展  

Progress in the Measurement of Polymer Molecular Weight

作　　者：任玲玲[1] 田芙蓉 高慧芳[1] 张敏[2] Ren Lingling;Tian Furong;Gao Huifang;Zhang Min(National Institute of Metrology,Beijing 100013,China;Shaanxi Key Laboratory of Chemical Additives for Industry,Shaanxi University of Science and Technology,Xi'an 710021,China)

机构地区：[1]中国计量科学研究院,北京100013 [2]陕西科技大学陕西省轻化工助剂重点实验室,陕西西安710021

出　　处：《塑料科技》2019年第1期138-145,共8页Plastics Science and Technology

基　　金：国家重点研发计划(2016YFF0204301)

摘　　要：聚合物材料的性质对其分子量及分子量分布有着很强的依赖性,因此对二者进行准确测量具有重要意义。本文分别归纳总结了测量聚合物重均、数均、黏均分子量的一些常规技术,阐述了其测量技术原理及测量过程中进行的如仪器校准、选择最优测量方法等可保证测量准确性的程序,特别强调了这些过程中对不同分子量标准物质的需求。The properties of polymer materials are strongly dependent on their molecular weight and molecular weight distribution. Thus, accurate measurements of molecular weight and molecular weight distribution are of great significance. In this paper, the measurements of polymer weight-average, number-average, viscosity-average molecular weight with some conventional techniques were summarized, moreover, their technical principles, and process conditions which can ensure measurement accurate, such as instrument calibration, best measurement methods selection, were described also. At last, the requirements of different molecular weight reference material to accurate measurements were emphasized particularly.

关 键 词：分子量 分子量分布 仪器校准 标准物质 

分 类 号：TQ317.3[化学工程—高聚物工业]