液态硫介电性能及聚合机理的探究

Research of dielectric property and polymerization mechanism of liquid sulphur

介绍了利用介电阻抗谱仪对液态硫在不同温度和不同频率下的介电性能进行了表征和分析。研究结果表明硫磺在融化时就开始有聚合硫生成;在Tλ硫发生开环聚合,使介电常数实部在Tλ处出现明显峰值;此外,还发现硫在熔融过程中,液态硫体系内存在有序结构。

Dielectric property of liquid sulphur in different frequencies and temperatures via broadband dielectric spectra（ BDS）were characterized and analyzed in this paper. The results showed that sulphur is polymerized when sulphur was melted; at Tλ,the ringopening polymerization of sulphur led to a peak in real part of permittivity. Besides,ordered structure were discovered in liquid sulphur.