摘要
通过对六氯环三磷腈进行溶液开环聚合,得到线形聚二氯磷腈,再由芳氧基团取代其长链上的活性氯原子,合成出芳氧基聚磷腈聚合物。利用红外光谱对合成的聚合物进行了表征,并进行了GPC、DMA、TGA及导热系数等分析。结果表明,合成出的聚合物为芳氧基聚磷腈,其数均相对分子质量为38343～44625,分散度为3.0305～4.8857。初始热分解峰温为374.23℃,主要分解峰温为397.78℃,在461.14℃和529.95℃有较明显的热失重现象,在565.37℃时仍有质量分数45.40%的残余并保持恒定,说明其具有优异的热稳定性;其玻璃化转变温度为-24.09℃,导热系数为0.21W.m-1.K-1。
Polyaryloxyphosphazene was obtained with aryloxy substituting chlorine atom of the linear polydichlorophosphazene,which was synthesized by solution polymerization of hexachlorocyclotriphosphazene.The polymer was characterized by IR spectrum and analyzed by GPC,DMA,TGA,and thermal conductivity.The results show that the polymer obtained is polyaryloxyphosphazene with number-average molecular weight ranging from 38343 to 44625 and dispersion degree ranging from 3.0305 to 4.8857.The peak temperature of the initial thermal decomposition is 374.23℃ and of main decomposition reaction is 397.78℃.The weight of the polymer which shows obvious weight loss at the temperature of 461.14℃ and 529.95℃ could remain 45.40% at the temperature of 565.37℃ and then keep constant.It can be expected that the polymer has good thermal stability at high temperature.The glass transition temperature of the polymer is-24.09℃ and the thermal conductivity 0.21W/（m·K）.
出处
《火炸药学报》
EI
CAS
CSCD
北大核心
2010年第2期61-64,共4页
Chinese Journal of Explosives & Propellants
基金
总装备部预先研究项目
关键词
有机化学
芳氧基聚磷腈
有机合成
热性能
包覆层
organic chemistry
polyaryloxyphosphazene
organic synthesis
thermal performance
coating-layer
作者简介
王志锋（1972-），男，博士，副研究员，从事聚磷腈高分子材料的制备及应用研究。
