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-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。 Modulated differential scanning calorimetry (MDSC) is a sinusoidal temperature program based on a traditional linear temperature change that decomposes the total heat flux into a reversible heat flux (heat capacity component) and an irreversible heat flux (kinetic component), while having a higher Sensitivity and resolution, it has unique advantages in the study of complex phase transition of polymer materials. In recent years, MDSC has been widely used in the research of glass transition, crystallization-melting, heat capacity change and other fields of polymer materials. In this paper, MDSC in polymer materials in recent years, the latest research and application are described in detail.