40-44

SOME THERMODYNAMIC CHARACTERISTICS OF «THIOMEBICAR» (2,4,6,8-TETRAMETHYLDITHIOGLYCOLURIL)

DOI: 10.6060/tcct.20165912.5458
Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2016. V. 59. N 12. P. 40-44.

Using the differential scanning calorimetry and mass spectrometry (in combination with a Knudsen effusion method), the enthalpies of fusion and sublimation for the promising bioactive preparation «thiomebicar» (2,4,6,8-tetramethyldithioglycoluril) have been estimat-ed. A comparative analysis of the obtained data with those for the well-known pharmatseuti-cal «mebicar» (2,4,6,8-tetramethylglycoluril), being a full carbonyl-substituted analogue pos-sessing the pronounced tranquilizing effect, has been carried.

Key words: 2,4,6,8-tetramethyldithioglycoluril, melting point, fusion heat, sublimation standard en-thalpy

ЛИТЕРАТУРА

2016, Т. 59, № 12, Стр. 40-44

PROPERTIES AND PHASE COMPOSITION OF DETONATION NANODIAMONDS SURFACE

The characteristics, properties and phase composition of surface of nano- and micro-diamond crystals obtained by detonation synthesis were researched. In blend composition of nano diamonds the carbine presence was revealed. On the surface of the nano diamond mi-crocrystals and after chemical treatment the presence of sp2 and sp3 carbon phases with the predominant content of sp3crystal phase was revealed. Together with that the presence on the surface of the sp3 amorpohous phase was established for nano diamonds.

Key words: detonation synthesis, carbon phase composition, detonation nanodiamonds, micro-diamonds, X-ray diffraction, electron microscopy, Raman scattering

REFERENCES
1. Shevchenko N.V. Theses collection of Int. NP Conf. « Promishlenay utilizaciy vooruzheniy, specialnoy tehniki i boepripasov». M.: « INTERPOLITEX-2012». P. 335-343 (in Russian).
2. Danilenko V.V. Synthesis and sintetring of diamonds with explosion. M.: Energoatomizdat. 2003. 272 p. (in Russian).

2016, Т. 59, № 8, Стр. 40-44