乌氏粘度计法测定高聚物摩尔质量实验的改进  

Improvement on the Experiment of Measuring the Molar Mass of Polymer by Ubbelohde Viscometer

作　　者：彭绪玲 杨靖涵 刘琦[1] 那大成[1] 齐学洁[1] 申蕊 罗艳玲 韩晓燕[1] 张师愚[1] Peng Xuling;Yang Jinghan;Liu Qi;Na Dacheng;Qi Xuejie;Shen Rui;Luo Yanling;Han Xiaoyan;Zhang Shiyu(Tianjin University of Chinese Medcine,Tianjin 301617,China)

机构地区：[1]天津中医药大学,天津301617

出　　处：《广东化工》2020年第21期155-155,166,共2页Guangdong Chemical Industry

摘　　要：乌氏粘度计法测定高聚物摩尔质量的实验过程中存在的一些不足,本文针对该实验存在的问题进行了改进,设计了一种简单的新型乌氏粘度计组合装置。实践证明,使用改良后的粘度测量装置进行聚乙烯醇的摩尔质量实验时,操作更加便捷,实验误差更小,可获得准确度相对更好的结果。In this paper,some shortcomings in the experiment of measuring the molar mass of polymer by Ubbelohde viscometer are improved.A simple new combined device of Ubbelohde viscometer is designed.When the new combined device of Ubbelohde viscometer is used for the molar mass experiment of polyvinyl alcohol,the operation is more convenient,less system error and more accuracy result can be obtained.

关 键 词：乌氏粘度计 聚乙烯醇 实验改进 

分 类 号：O65[理学—分析化学]