物理化学学报 >> 1997, Vol. 13 >> Issue (01): 64-67.doi: 10.3866/PKU.WHXB19970113
Zhou Xu-Zhang,Chen Jing-Wei,Shan Fu
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 chemical titration, thus showing high reliability of DDIE in polymer end-group determination.
The method takes less than 5 minutes to carry out. The advantages of DDIE are simplicity, speed and also a repeatability is good.
Differential direct injection enthalpimetry(DDIE),
Polymer terminal-group determination
周旭章,陈景蔚,单复. 差示直接注入热函法测定聚合物的端羟值[J]. 物理化学学报, 1997, 13(01): 64 -67.
Zhou Xu-Zhang,Chen Jing-Wei,Shan Fu. Determination of Terminal OH Groups in Polymers by Differential Direct Injection Enthalpimetry[J]. Acta Phys. -Chim. Sin., 1997, 13(01): 64 -67.
导出引用管理器 EndNote|Reference Manager|ProCite|BibTeX|RefWorks