Synthesis of Glycidyl Azide Polymer Azide Energetic Plasticizer
Glycidyl azide polymer (GAP) is a hydroxyl terminated aliphatic polyether containing alkyl azide groups. Such a polymer could be used as an energetic plasticizer in composite explosives, gun and rocket propellants. However, the hydroxyl groups of the polymer react with the isocyanate of the curing agent, thereby eliminating any possible plasticizing effect. This problem is overcome by producing a diazido terminated glycidyl azide polymer without terminal hydroxyl groups. This useful polymer is produced by reacting polyepichlorohyrin (PECH) with nitric acid in solvent of methylene chloride (CH2Cl2), and then the resulting polyepichlorohyrin-nitrate (PECH-nitrate) was reacted with sodium azide in dimethylacetamide (DMA). The PECH was prepared by the polymerization of epichlorohyrin (ECH) using an initiator such as ethylene glycol and a Lewis acid catalyst such as stannic tetrachloride. The 1H-NMR and 13CNMR spectroscopic data are in agreement with the proposed structures.
MAHYARI Amir AZARNIA Jamshid FERDOWSI Mohammad NOSRATZADEGAN Keyvan
Research Institute for Science and Technology,Tehran,Iran
国际会议
2011 International Autumn Seminar on Propellants,Explosives and Pyrotechnics(2011国际推进剂、炸药、烟火技术秋季研讨会)
南京
英文
43-47
2011-09-20（万方平台首次上网日期，不代表论文的发表时间）