差示直接注入热函法测定聚合物的端羟值

作     者：周旭章 陈景蔚 单复 

作者机构：国防科学技术大学五系长沙410073 

出 版 物：《物理化学学报》 (Acta Physico-Chimica Sinica)

年 卷 期：1997年第13卷第1期

页      面：64-67页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

主　　题：直接注入热函法 聚合物 端羟值 端羟基 

摘      要：A thermometric method In which the heat of reaction is used as a quantitative measure of terminal OH groups in polymers has been in routine use. We use DDIE to determine the terminal OH groups in polyglycol and telechelic polybutadienes by the acetylation reaction of perchloric acid with acetic anhydride. The result is in good agreement with that of chcmical titration, thus showing high reliability of DDIE in polymer end-group *** method takes less than 5 minutes to carry out. The advantages of DDIE are simplicity,speed and also a repeatability is good.