中文摘要：

调制差示扫描量热法（MDSC）是在传统线性变温基础上叠加一个正弦震荡温度程序，将总热流量分解为可逆热流（热容成分）和不可逆热流（动力学成分），同时具有较高的灵敏度和分辨率，在研究高分子材料复杂相变时具有独特的优势。近年来，MDSC在研究高分子材料的玻璃化转变、结晶一熔融、热容变化等领域得到了较为广泛的应用。本文对MDSC近年来在高分子材料中的最新研究应用做了详细介绍。

英文摘要：

Modulated differential scanning calorimetry, MDSC, by adding a periodic temperature oscillation to the conventional DSC thermal program and performing suitable mathematical manipulations of the measured heat flow rate, the resultant heat flow signal could be separated into time dependent and time independent components. With high sensitivity and resolution, MDSC has unique advantages in the study of polymer materials complex phase transition. In recent years, MDSC has been widely used during the study of glass transition, crystalline-melting, heat capacity etc. The latest applications in polymer science in recent years were discussed.