Insights into characteristics and thermokinetic behavior of potential energy-rich polysaccharide based on chitosan

Tarchoun, Ahmed Fouzi; Hamouche, Mohamed Abderrahim; Bessa, Wissam; Abdelaziz, Amir; Boukeciat, Hani; Bekhouche, Slimane; Belmehdi, Djamal

doi:10.1007/s10570-022-04770-9

Cited by 11 publications

(6 citation statements)

References 77 publications

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“…39 Fig. 9 Friction sensitivity of compounds 1-5 and some other previously studied energetic materials: experiment vs. model, eqn (6). The parameters of the optimized eqn ( 6) are e 1 = À0.128, e 2 = 0.031, e 3 = À0.0015, and e 4 = 6.6.…”

Section: Discussionmentioning

confidence: 99%

“…[1][2][3] A thermokinetic study is carried out to comprehend the mechanism of a thermally induced process and to determine the controlling kinetic parameters. [4][5][6] The approaches of thermokinetic analysis can be broadly divided into two categories, i.e., isoconversional 7,8 and model-fitting [9][10][11] approaches. Most recent developments of thermokinetic methods mainly address the mathematical procedure, viz.…”

Section: Introductionmentioning

confidence: 99%

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Thermal stability of emerging N6-type energetic materials: kinetic modeling of simultaneous thermal analysis data to explain sensitivity trends

Muravyev

Pronkin

Klenov

et al. 2023

Phys. Chem. Chem. Phys.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal stability of emerging N6-type energetic materials: kinetic modeling of simultaneous thermal analysis data to explain sensitivity trends

Muravyev

Pronkin

Klenov

et al. 2023

Phys. Chem. Chem. Phys.

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“…This investigation was subsequently followed by the work of Tarchoun et al [18], who studied the characteristics of NCS, derived from shrimp shells, and its blends with NC. In fact, the obtained findings demonstrated that this emergent nitrate ester polymer shows attractive characteristics, such as great nitrogen content (Nc = 16.79%), high density (ρ = 1.708 g/cm 3 ), moderate impact sensitivity (15 J), great exothermic decomposition enthalpy (2285 J), and increased detonation velocity (7788 m/s), which are significantly better than those of the traditional NC [19]. Therefore, these outstanding properties of NCS have motivated us to evaluate its ability to be used with the state-of-the-art AP and AN oxidizers, as well as emergent nitrogen-rich HNTO salt.…”

Section: Introductionmentioning

confidence: 94%

“…In this context, a new class of insensitive and high-energy dense cellulosic materials has been designed by incorporating nitrate esters and other nitrogen-rich groups, such as azido, tetrazole-acetate, N-nitrocarbamate, and aminoethyl-nitramine, providing new opportunities to fabricate innovative energetic composites with enhanced features [14][15][16][17]. More recently, high-nitrated chitosan (NCS) has been outlined as an outstanding energetic nitrogen-rich polysaccharide with great potential to replace the conventional NC in advanced energetic formulations (e.g., solid propellants and composite explosives) with high density, good thermal stability, insensitivity, and high-energy performance [18][19][20][21]. Indeed, Li et al [20] were the first authors who reported the preparation of a high-substitute NCS using a mixture of anhydrous acetic and fuming nitric acids in a specific charging sequence.…”

Section: Introductionmentioning

confidence: 99%

New Insights into the Chemical Compatibility of Nitrochitosan with Potential Energetic Molecules

Tarchoun,

Trache,

Hamouche

et al. 2023

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This study provides new insights into the compatibility of a promising energetic polysaccharide, called nitrochitosan (NCS), with energy-rich ammonium perchlorate (AP), ammonium nitrate (AN), and hydrazine 3-nitro-1,2,4-triazol-5-one (HNTO) molecules, in order to survey their application prospects in solid rocket propellants and explosives. For this purpose, differential scanning calorimetry (DSC) and thermogravimetric (TGA) analyses were carried out to accurately evaluate the chemical compatibility of NCS with the selected energetic molecules following the STANAG 4147 criterion. Fourier transform infrared spectroscopy (FTIR), as a non-thermal complementary technique, was also performed to further elucidate the eventual structural alterations occurring in the physical mixtures (NCS/AP, NCS/AN, and NCS/HNTO). Based on DSC results, the maximum exothermic peak temperature difference between NCS (Tpeak = 164.7 °C) and the as-prepared NCS/AP (Tpeak = 164.3 °C), NCS/AN (Tpeak = 204.3 °C), and NCS/HNTO (Tpeak = 197.0 °C) admixtures is found to be lower than 4 °C. Moreover, TGA experiments showed that the observed mass losses of the physical mixtures are lower than the sum of the weight losses of their respective individual compounds. Therefore, thermal results demonstrated the excellent chemical compatibility of NCS with the corresponding energetic molecules. In addition, FTIR measurements highlighted the absence of chemical interactions between NCS and the selected AP, AN, and HNTO. Therefore, a deep investigation into the characteristics of such energetic composites and their real-world applications will be among the main focuses of the postulated next stage of research.

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“…These copolymers improved flexibility and thermal stability and produced less carbon residue. Additionally, isoconversional kinetic models were employed to predict the kinetic parameters, which are associated with the thermolysis process of the investigated energetic formulations. , These copolymers are developed toward the effectively regulated mechanical and thermal properties of the propellant binder.…”

Section: Introductionmentioning

confidence: 99%

Click Chemistry for Linker-Free BAMO-Based Energetic Sequence-Controlled Copolymers

Li,

Zheng,

Yin

et al. 2023

ACS Appl. Polym. Mater.

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In the field of energetic materials (EMs), soft chains are copolymerized with energetic polymers to improve flexibility. However, this often makes it difficult to achieve simultaneous optimization of the energy level and flexibility due to the random sequence. In this study, a simple approach is presented to develop energetic sequencecontrolled polymers (ESCPs), alternate copolymers poly(3,3-bis(azidomethyl)oxetaneglycol) (P(BAMO-alt-EG)) and poly(3,3-bis(azidomethyl)oxetane-tetrahydrofuran) (P(BAMO-alt-THF)), through click reactions. This approach provides the potential to design and control mechanical and thermal properties in propellant binders by introducing various segments and regulating the sequence structure. These polymers display excellent thermal stability and demonstrate that regulated shorter segmental length promoted better flexibility and less residual carbon content without compromising the energy level of the propellant. The obtained kinetic parameters prove that P(BAMO-alt-EG) released higher heat and accelerated the thermolysis process compared to P(BAMO-alt-THF). These results demonstrate the potential of highly alternating ESCPs as a potential energetic propellant binder.

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Insights into characteristics and thermokinetic behavior of potential energy-rich polysaccharide based on chitosan

Cited by 11 publications

References 77 publications

Thermal stability of emerging N6-type energetic materials: kinetic modeling of simultaneous thermal analysis data to explain sensitivity trends

Thermal stability of emerging N6-type energetic materials: kinetic modeling of simultaneous thermal analysis data to explain sensitivity trends

New Insights into the Chemical Compatibility of Nitrochitosan with Potential Energetic Molecules

Click Chemistry for Linker-Free BAMO-Based Energetic Sequence-Controlled Copolymers

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