Synthesis, Characterization, and Thermal Decomposition Kinetics of Nitrogen-Rich Energetic Biopolymers from Aminated Giant Reed Cellulosic Fibers

Abstract

This research focuses on the exploration of giant reed (Arundo donax L., AD) as a viable and underutilized sustainable resource for the development of energetic nitrogenrich dense biopolymers based on surface amino functionalization and nitration of extracted native cellulose and cellulose microcrystals (ANCN and ACMCN). Their physicochemical features, molecular structure, crystallinity, and thermal behavior were examined and compared to those of native cellulose and cellulose microcrystals nitrates (NCN and CMCN) produced from the same bioresource. The obtained results demonstrated that these newly manufactured nitrogen-rich cellulosic materials present excellent energetic performance and reduced mechanical sensitivities with respect to those of the traditional NCN and emergent CMCN. Furthermore, the nonisothermal decomposition kinetics studied using isoconversional integral approaches revealed that the developed ANCN and ACMCN displayed good thermal stability with an autocatalytic decomposition mechanism and slightly lower Arrhenius parameters than the common NCN. Therefore, this study provides an efficient process to develop new promising insensitive and nitrogen-rich energetic macromolecules from valuable alternative AD feedstock for potential applications in solid propellant formulations.

Valorization of Esparto Grass Cellulosic Derivatives for the Development of Promising Energetic Azidodeoxy Biopolymers: Synthesis, Characterization and Isoconversional Thermal Kinetic Analysis

“…Besides that, the azidation efficiency of AEGMCC appears to be higher than that of AEGC based on the increased intensity of N 3 band, which is in total accordance with the Nc evolution. A similar trend was previously reported for cellulosic derivatives including other functional moieties [18,53].…”

“…As a main energy-rich cellulosic material, nitrated cellulose or commonly known as nitrocellulose remains the most extensively employed energetic biopolymer in several defense and civilian industries owing to its inherent properties concerning other high-energy polymers [14][15][16]. Nevertheless, its poor combustion performances, hazardous chemical stability, low density, high friability, and inappropriate mechanical sensitivities have extremely limited its widespread use [17,18]. Therefore, further research investigations need to be conducted to fill current gaps through physical and chemical modifications of pristine cellulosic fibres to pave the way towards the next generation of cellulose-based energetic polymers with advantageous features for advanced insensitive and high-energy dense formulations.…”

Optimized energetic HNTO/AN co-crystal and its thermal decomposition kinetics in the presence of energetic coordination nanomaterials based on functionalized graphene oxide and cobalt

“…The thermal behavior of EMs is so important to understand since it plays an important role for the preparation, processing, and storage as well as for the evaluation of their utilization and performance. [49][50][51][52] DSC experiments were undertaken at 10 C min À1 to investigate the thermal behavior of the prepared co-crystals. The obtained results are illustrated in Fig.…”

A Non‐Ionic Precursor for Preparing Di‐, Tetra‐, Hexanitro‐2,4,6,8,10,12‐hexaazatricyclo[7,3,0,03,7]dodecane‐5,11‐dione: Synthesis, Mechanism and Properties

“…The DSC technique is widely applied to evaluate the thermal stability of energetic material for its several advantages such as less sample usage, time‐saving and operation convenience [14–16] . The relationship between the mass of energetic material and temperature can be carried out by the TG thermal analysis method, which is helpful to analyze the decomposition process of compounds.…”