摘要
以三羟甲基丙烷和碳酸二乙酯为原料经环化、硝化两步反应合成了化合物3-硝酸酯甲基-3-乙基氧丁环(NIMEO);采用1,4-丁二醇(BDO)为引发剂,三氟化硼.乙醚(BF3.Et2O)为催化剂,NIMEO发生阳离子开环聚合得到一种端羟硝酸酯均聚醚PNIMEO。讨论了催化剂/引发剂的摩尔比、反应温度对聚合反应的影响。性能研究表明:PNIMEO的玻璃化转变温度为-25℃,分解温度为218℃,分解焓为+1212J.g-1,爆炸概率为0,特性落高为109.6cm。
3-Nitratomethyl-3-ethyloxetane was synthesized by the process of cycllzation,nitation from trimethlolpropane and diethyl carbonate, and the homopolymer of 3-nitratomethyl-3-ethyloxetane was synthesized with 1,4-butanediol as initator and boron trifluoride etherate as an catalyst by cationic ring-opening polymerization. The effect of catalyst/initator molar ratio and reaction temperature on polymerization was discussed. The study of properties indicates that PNIMEO has a glass translation temperature of - 25 ℃ , the temperature decomposition of 218 ℃ , the decomposition enthalpy of ＋ 1212 J · g^-1 , the explosion probability of 0, the 50% point of 109.6 cm.
出处
《含能材料》
EI
CAS
CSCD
2007年第4期313-315,319,共4页
Chinese Journal of Energetic Materials
关键词
有机化学
含能粘合剂
3-硝酸酯甲基-3-乙基氧丁环
阳离子开环聚合
均聚
性能
organic chemistry
energetic binders
3-nitratomethyl-3-ethyloxetane
cationic ring-opening polymerization
homopoty- merization
property
