Chemical design and characterization of cellulosic derivatives containing high-nitrogen functional groups: Towards the next generation of energetic biopolymers

Tarchoun, Ahmed Fouzi; Trache, Djalal; Klapotke, Thomas M.; Abdelaziz, Amir; Derradji, Mehdi und Bekhouche, Slimane (2022): Chemical design and characterization of cellulosic derivatives containing high-nitrogen functional groups: Towards the next generation of energetic biopolymers. In: Defence Technology, Bd. 18, Nr. 4: S. 537-546

Abstract

In this research, a promising class of insensitive and high-energy dense biopolymers, which contain nitrogen-rich 1H-tetrazol-1-yl acetate and nitrate ester functional groups, was successfully synthesized through tetrazole derivatization and nitration of cellulose and its micro-sized derivative (TNCN and TCMCN). Their molecular structures, physicochemical properties, thermal behaviors, mechanical sensitivities and detonation performances were studied and compared to those of the corresponding nitrocellulose and nitrated micro-sized cellulose (NCN and CMCN). The developed energetic TNCN and TCMCN exhibited insensitive character with excellent features such as density of 1.710 g/cm3 and 1.726 g/ cm3, nit rogen content of 20.95% and 22.59%, and detonation velocity of 7552 m/s and 7786 m/s, respectively, and thereby demonstrate their potential applications as new generation of energetic biopolymers to substitute the common NCN. Furthermore, thermal results showed that the designed nitrated and chemical modified cellulosic biopolymers displayed good thermal stability with multistep decomposition mechanism. These results enrich future prospects for the design of promising insensitive and high-energy dense cellulose-rich materials and commence a new chapter in this field. (c) 2021 China Ordnance Society. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Chemie und Pharmazie > Department Chemie
• Themengebiete: 500 Naturwissenschaften und Mathematik > 540 Chemie
• ISSN: 2096-3459
• Sprache: Englisch