【摘要】 使用熔融淬冷的方法得到具有弹性的聚合硫产物,DSC和拉曼光谱分析表明其中聚合硫的含量约19%。进一步研究表明该产物在-19℃时发生玻璃化转变,于40℃时具有放热结晶现象,结晶过程的焓变为-3.45 J/g。利用宽频介电阻抗谱仪对其分析表明,该弹性产物存在符合阿伦尼乌斯公式的介电松弛现象。更多还原

【Abstract】 A elastic polymeric sulfur was prepared by quenching liquid sulfur, the content of polymeric sulfur in it was determined by DSC and Raman spectra. The result showed that the content of polymeric sulfur was approximately 19%. Further research found that there was a glass transition at-19 ℃ and an exothermic crystallization occurred at the temperature of 40 ℃, the crystallization enthalpy change was-3.45 J/g. And a dielectric relaxation being consistent with the Arrhenius formula was found via broadband dielectric spectra.更多还原