支化聚叠氮缩水甘油醚硝酸酯的制备

Preparation of Branched Glycidyl Azide Polymer Nitrate

为改善含能粘结剂及增塑剂的流变性与氧平衡，用聚环氧氯丙烷（PECH）、叠氮钠（NaN3）、氢氧化钠（NaOH）、在乙二醇（EG）引发下，100℃反应获得了支化聚叠氮缩水甘油醚（B-GAP），浓硝酸-20～0℃反应，将B-GAP转化为支化聚叠氮缩水甘油醚硝酸酯（B-GAPN）。研究了用反应条件控制B-GAP羟值及B-GAP与B-GAPN分子量。从B-GAP红外光谱的-OH特征峰削弱和-ONO2峰的出现，可判断合成产物为B-GAPN。

Branched glycidyl azide polymer （ B-GAP ） was obtained at 100 ℃, using poly epoxy chloropropane, sodium azide, and sodium hydroxide as reactants and glycol as initiator. B-GAP was transformed to branched glycidyl azide polymer nitrate （ B-GAPN ） with concentrated nitric acid at -20 -0℃. Reaction parameters were used to controll molecular weight and hydroxy number of B- GAP,and moeeular weight of B-GAPN. The preparation product B-GAPN is testified by infrared spectrum analysis which indicates evident decrease of hydroxy group and emergence of nitrate peak.