中文摘要：

利用非等温、等温热重分析法,研究了高纯氮气气氛下1-烯丙基-3-甲基咪唑二氰胺盐（[amim][N（CN）2]）的热稳定性和平衡蒸汽压。非等温热重分析表明,其初始分解温度为551 K,而长期热重分析研究结果表明,[amim][N（CN）2]的最高可使用温度约为443 K。另外,利用基于热重的蒸发技术研究了该盐的平衡蒸汽压（Pe）与温度的关系并计算了标准蒸发焓。在423～473 K范围内,其Pe和温度的关系是：lgPe=14±1＋（-（4.848±0.156）×103/T）。本文的结果为离子液体在高温下使用提供了理论依据。

英文摘要：

Thermal stability and equilibrium vapor pressure of 1-allyl-3-methylimidazolium dieyanamide （[amim] [ N （CN）2 ] ） were investigated by using both non-isothermal and isothermal thermogravimetric analysis （TGA） under high pure nitrogen as carrier gas. The non-isothermal TGA curve showed that the onset decomposition temperature was 551 K. However, the long-term isothermal TGA studies revealed that its highest use temperature should be 443 K. Moreover, the temperature dependence of the equilibrium vapor pressure and the standard enthalpy of vaporization of [amim] [ N（CN）2 ] were also investigated by TG-based transpiration.. In the temperature range of 423 -473K, the relationship between the equilibrium vapor pressure （Po） and temperature was lgPs = 14 ± 1 ＋ - （4. 848 ±0.156） × 103 The results provided a theoretical basis for the usage of ionic liquid at high T temperature.