The glass transition temperature Tg of polymers -: Comparison of the values from differential thermal analysis (DTA, DSC) and dynamic mechanical measurements (torsion pendulum)

被引：153

作者：

Rieger, J ^{[1
]}

机构：

[1] BASF AG, Polymer Phys Solid State Phys, D-67056 Ludwigshafen, Germany

来源：

POLYMER TESTING | 2001年 / 20卷 / 02期

关键词：

glass transition temperature; thermal analysis; dynamic mechanical analysis;

D O I：

10.1016/S0142-9418(00)00023-4

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

It is often maintained that the glass transition temperatures determined by dynamic mechanical thermal analysis (DMTA) are higher than the corresponding glass transition temperatures measured by differential thermal analysis (DTA, DSC). Examination of a large number of polymeric systems revealed that this statement is not generally true when a torsion pendulum with a frequency of measurement of 1 Hz is used as the DMTA instrument. On the contrary, it is found on average that the relationship T(g,TP)approximate toT(g,DTA) holds. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：199 / 204

页数：6

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