An experimental and theoretical study of the thermal stability of the nitropyridines

Author(s):  
G. P. Sharnin ◽  
V. V. Zverev ◽  
I. Sh. Saifullin ◽  
I. S. Gaisin ◽  
I. F. Falyakhov ◽  
...  
2013 ◽  
Vol 54 (1) ◽  
pp. 140-144 ◽  
Author(s):  
Xiaolan Wei ◽  
Qiang Peng ◽  
Jing Ding ◽  
Xiaoxi Yang ◽  
Jianping Yang ◽  
...  

2019 ◽  
Vol 346 ◽  
pp. 150-159 ◽  
Author(s):  
Jelena Papan ◽  
Dragana Jovanović ◽  
Milica Sekulić ◽  
Estelle Glais ◽  
Miroslav D. Dramićanin

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Silviana Corrêa ◽  
Lívia C. T. Lacerda ◽  
Maíra dos S. Pires ◽  
Marcus V. J. Rocha ◽  
Francisco G. E. Nogueira ◽  
...  

Theδ-FeOOH/PMMA nanocomposites with 0.5 and 2.5 wt.% ofδ-FeOOH were prepared by grafting 3-(trimethoxysilyl)propyl methacrylate on the surface of the iron oxyhydroxide particles. The FTIR spectra of theδ-FeOOH/PMMA nanocomposites showed that the silane monomers were covalently attached to theδ-FeOOH particles. Because of the strong interaction between the PMMA andδ-FeOOH nanoparticles, the thermal stability of theδ-FeOOH/PMMA nanocomposites was improved compared to the pure PMMA. The SEM analysis conferred the size agglomerate of particles regarding the morphology of samples. The theoretical study enabled a better understanding of the interaction of the polymer with the iron oxyhydroxide. The DFT-based calculations reinforce the radical trapping mechanism of stabilization of nanocomposites; that is, Fe3+species might be able to accept electrons coming from the organic phase that decomposes via radical unzipping. The radical scavenge effect delays the weight loss of polymer.


2006 ◽  
Vol 96 (2-3) ◽  
pp. 418-421 ◽  
Author(s):  
D. Xie ◽  
M.P. Wang ◽  
W.H. Qi ◽  
L.F. Cao

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