In this study, we propose a "modular assembly" strategy to synthesize a series of new trinitromethyl high-energy molecules. For a typical molecule 1, this approach reduces the number of synthetic steps from 7 to 2 and improves the yield from 1.0% to 48.
View Article and Find Full Text PDFCarbonyl azides are important precursors to isocyanates and are used as energetic compounds. However, the further development of these compounds is limited by their inherently poor stability. In this study, we present a new family of carbonyl azides, 5-nitro-1H-1,2,4-triazol-3-yl-carbamoyl-azide (NTCA), which was synthesized through in situ oxidation cleavage of amino-tetrazole.
View Article and Find Full Text PDFPolymer nanocomposites with nanoparticles dispersed in polymer matrices have attracted extensive attention due to their significantly improved overall performance, in which the nanoparticle-polymer interface plays a key role. Understanding the structures and properties of the interfacial region, however, remains a major challenge for polymer nanocomposites. Here, we directly observe the presence of two interfacial polymer layers around a nanoparticle in polar polymers, i.
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