OALib Journal期刊
聚丙烯酸叠氮乙酯的合成与表征
DOI: 10.3724/SP.J.1105.2013.13200
Keywords: 聚丙烯酸叠氮乙酯 ,自由基聚合 ,叠氮化 ,相容性
Abstract:
以丙烯酸和氯乙醇为原料，经过酯化、自由基聚合以及叠氮化三步反应合成得到了一种新型叠氮类聚合物—聚丙烯酸叠氮乙酯，可满足高聚物黏结炸药和固体火箭推进剂对黏结剂不敏感及相容性较好的要求.经元素分析、FTIR、UV-Vis、1H-NMR等方法对聚合物结构进行了表征，得到结构正确且叠氮化率为98.67%的产物；用GPC对聚合物的分子量以及分子量分布进行了检测，结果表明聚合物数均分子量（Mn）为1.14×105，分子量分布指数（Mw/Mn）为3.20；用DTA、DSC、TGA等方法对聚合物的热稳定性进行了分析，结果表明聚丙烯酸叠氮乙酯在空气中220℃以内未见分解，热稳定性好，其玻璃化转变温度为-11.77℃.并用差热分析技术研究聚丙烯酸叠氮乙酯与炸药的相容性，结果表明其能在TNT及HMX炸药中安全使用，在RDX炸药中相容性欠佳.
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