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Information × Registration Number 0219U102024, 0118U002242 , R & D reports Title Development of the composotion and technology of manufacturing thermochtomic materials for thermal control in a wide range of temperatures popup.stage_title Head Fritsky Igor O., Доктор хімічних наук Registration Date 13-12-2019 Organization Taras Shevchenko National University of Kyiv popup.description2  Object of study: Three complexes (1 g each) based on 1,2,4-triazoles with thermochromic effects in the range -150 - 0 ° C. Three complexes (1 g each) based on 1,2,4-triazoles with thermochromic effects in the range 0 - 50 ° C. Three complexes (1 g each) based on 1,2,4-triazoles with thermochromic effects in the range of 50 –150 ° C. Three complexes (0.2 g each) based on pyrazines with thermochromic effects in the range -150 - 0 ° C. Two complexes (0.2 g each) based on pyrazines with thermochromic effects in the range of 50 - 150 ° C Three (3) composite materials (1 g each) with thermochromic effects in the region of -150 - 0 ° C. Three (3) composite materials (1 g each) with thermochromic effects in the range 0 - 50 ° C. Three (3) composite materials (1 g each) with thermochromic effects in the range of 50 - 150 ° C. Purpose of the study: development of thermochromic materials based on complexes with spin transition for temperature control. Thermochromic materials are able to change their color under the influence of heating or cooling. The so-called spin transition complexes exhibit thermochromic properties when the spin state changes. In this work, samples of thermochromic complexes with such complexes for thermal control over a wide range of temperatures (from -150 ° C to +150 ° C) are developed. These materials are intended for optical or visual control of temperature changes (eg, operating mechanisms of various machines, heat carriers, external housings, freezers, household appliances) due to overheating or environmental factors. Methods of investigation: The phenomenon of thermochromism in the obtained test specimens was investigated by measuring the optical reflection at a variable temperature, using a microscope equipped with an optical camera. The change in temperature was monitored using a flow-through nitrogen cryostat. Product Description popup.authors Bibik Yuri М. Gural'skiy Illya О. Kotova Nataliya V. Kucheriv Olesya I. Partsevska Sofiia V. Plutenko Maksym O. Sirenko Valeriy Yu. Safyanova Inna S. Fritsky Igor O. popup.nrat_date 2020-04-02 Close