Films of nitrocellulose (NC), glycidyl azide polymer (GAP), and nitroglycerine (NG) have been evaluated using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy, dynamic mechanical analysis (DMA), and tensile testing. The SEM micrographs demonstrate that, even at low GAP concentration, a portion of GAP will coalesce into spherical domains due to a saturation effect. This is related to the inability of higher molecular weight GAP to effectively situate itself between NC polymer chains. The addition of a small fraction of lower molecular weight NG completely changes this behavior. DMA confirms that two transitions are present and can be attributed to a plasticizer rich phase (β), a polymer rich phase (α) and that NC plasticized with GAP is in accordance with the Gordon‐Taylor equation. Tensile results show that the addition of a small fraction of NG to a NC/GAP based‐formulation increases elongation at break to values similar to that of the NC/NG base formulation. The combination of these two plasticizers, GAP and NG, allows for the plasticization of NC at significantly lower environmental and human toxicity levels.

中文翻译：

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缩水甘油叠氮化物聚合物和硝化甘油增塑的硝化纤维素的相变和力学性能

硝酸纤维素膜（NC），缩水甘油叠氮化物聚合物（GAP）和硝酸甘油（NG）的膜已使用扫描电子显微镜（SEM），傅立叶变换红外光谱，动态力学分析（DMA）和拉伸测试进行了评估。SEM显微照片表明，即使在低GAP浓度下，由于饱和效应，一部分GAP也会聚集成球形区域。这与较高分子量的GAP无法有效地位于NC聚合物链之间有关。添加一小部分较低分子量的NG完全改变了这种行为。DMA确认存在两个过渡，可以归因于富塑剂富集相（β），富聚合物相（α），并且用GAP增塑的NC符合Gordon-Taylor方程。拉伸结果表明，向基于NC / GAP的配方中添加一小部分NG可以将断裂伸长率提高至与NC / NG基本配方相似的值。两种增塑剂GAP和NG的组合可在显着降低环境和人类毒性水平的条件下使NC增塑。