کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1405742 1501802 2012 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation, characterization and thermolysis of nitrate salt of aminopyridines, Part-85
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Preparation, characterization and thermolysis of nitrate salt of aminopyridines, Part-85
چکیده انگلیسی

Recent work has described the preparation and characterization of nitrate salts of 2, 3- and 4-aminopyridines. 3- and 4-Aminopyridine salts were characterized by X-ray crystallography. Thermal and ignition characteristics of these salts were studied by TG, simultaneous TG-DSC and ignition delay measurements. The kinetics of thermal decomposition was evaluated by model fitting and isoconversional methods using isothermal TG data. When subjected to high temperature, these salts undergo exothermic self propagative decomposition reactions leading to ignition. The proton transfer process seems to be the primary step in the thermolysis of these salts. The energy of activation for decomposition (Ea) and ignition (E∗) were found to be linearly related with pKa of the corresponding amine.


► Preparation of energetic pyridylammonium nitrate salts.
► X-ray crystallography of prepared salts.
► Thermal and ignition characteristics of salts by TG-DSC and ignition delay measurements.
► Proton transfer as primary step followed by the ignition in the thermal decomposition.
► Kinetics of thermal decomposition by model fitting and iso-conversional methods.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1012, 28 March 2012, Pages 62–72
نویسندگان
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