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C-CM-C的合成及其对硝化纤维素稳定性的影响。

Synthesis of C-CM-C and its effect on the stabilization of nitrocellulose.

作者信息

Chu Haoxi, Jin Bo, Zhao Yang, Peng Rufang

机构信息

State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology Mianyang 621010 China

出版信息

RSC Adv. 2025 Jul 8;15(29):23827-23835. doi: 10.1039/d5ra01741f. eCollection 2025 Jul 4.

Abstract

The fullerene derivative C-CM-C was synthesized a two-step reaction using fullerene (C), curcumin (CHO), and bromoalkanes (RBr) as raw materials. The structure of C-CM-C was characterized by nuclear magnetic resonance (H and C NMR) and high-resolution mass spectrometry (HR MS). Thermal analysis, including differential thermal analysis (DTA), vacuum stability tests (VST), thermogravimetric analysis (TG), and methyl violet experiments, along with electron paramagnetic resonance spectroscopy, was used to investigate the interaction mechanism between C-CM-C and nitrocellulose (NC). The results demonstrated that there is good compatibility between C-CM-C and NC, C-CM-C extended the color change time of methyl violet paper by 28-47 min, reduced the gas released during the thermal decomposition of NC by 0.7-1.69 mL g, and decreased the heat loss rate of NC by 9.8-15.6%. Additionally, at a minimum concentration of 0.19 g L, C-CM-C achieved a 50% removal rate of nitrogen oxides (NO ). These findings indicate that C-CM-C serves as an effective antioxidant for the removal of nitrogen oxides from NC fibers, outperforming traditional stabilizers such as diphenylamine (DPA) and C2 in improving NC stability.

摘要

富勒烯衍生物C-CM-C是采用富勒烯(C)、姜黄素(C₂₁H₂₀O₆)和溴代烷烃(RBr)作为原料,通过两步反应合成的。C-CM-C的结构通过核磁共振(¹H和¹³C NMR)以及高分辨率质谱(HR MS)进行了表征。利用包括差示热分析(DTA)、真空稳定性测试(VST)、热重分析(TG)和甲基紫实验在内的热分析方法,以及电子顺磁共振光谱,来研究C-CM-C与硝化纤维素(NC)之间的相互作用机理。结果表明,C-CM-C与NC之间具有良好的相容性,C-CM-C使甲基紫试纸的变色时间延长了28 - 47分钟,使NC热分解过程中释放的气体减少了0.7 - 1.69 mL/g,并使NC的热损失率降低了9.8 - 15.6%。此外,在最低浓度为0.19 g/L时,C-CM-C实现了50%的氮氧化物(NOₓ)去除率。这些发现表明,C-CM-C作为一种有效的抗氧化剂,可用于从NC纤维中去除氮氧化物,在提高NC稳定性方面优于传统稳定剂如二苯胺(DPA)和C₂。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e3b9/12236332/d4a296bae324/d5ra01741f-f1.jpg

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