scholarly journals RESULTS OF RESEARCHES OF PROPERTIES AND CHARACTERISTICS OF OILS BY THE METHOD OF SYNCHRONOUS THERMAL ANALYSIS

2020 ◽  
pp. 104-111
Keyword(s):  
Thermal Analysis ◽  
Synchronous Thermal Analysis

scholarly journals Using synchronous thermal analysis instrument to identify number of cycles of fish refrigeration

2018 ◽  
Vol 1118 ◽  
pp. 012025
Author(s):  
A E Mateyeva ◽  
S V Shakhov ◽  
I A Saranov ◽  
I A Glotova ◽  
O V Peregonchaya ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Synchronous Thermal Analysis ◽  
Analysis Instrument ◽  
Number Of Cycles

Novel authigenic gas foaming hydrogels for preventing coal spontaneous combustion

e-Polymers ◽  
2015 ◽  
Vol 15 (5) ◽  
pp. 361-368 ◽  
Author(s):  
Xiangming Hu ◽  
Weimin Cheng ◽  
Zhenlu Shao
Keyword(s):  
Thermal Stability ◽  
Thermal Analysis ◽  
Acetic Acid ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Substantial Effect ◽  
Foaming Agent ◽  
Synchronous Thermal Analysis ◽  
Gas Foaming ◽  
Scanning Electron

AbstractAuthigenic gas foaming hydrogels were synthesized using chitosan (CS), acrylic acid, and attapulgite (APT) as hydrophilic monomers; potassium persulfate as initiator; N,N′-methylenebisacrylamide as cross-linker; and sodium carbonate (Na2CO3)/acetic acid as foaming agent. Effects of different monomers, amount of foaming agent, and temperature on swelling ratio (SR) of the hydrogels were examined. Morphology, structure, and thermal stability of authigenic gas foaming hydrogels were studied using field emission scanning electron microscope, Fourier-transform infrared spectroscopy, and synchronous thermal analysis. Scanning electron microscope images reveal apparent pores on hydrogels, produced by foaming agent Na2CO3/acetic acid. Therefore, more foaming agent would bring more pores on hydrogels. Synchronous thermal analysis results suggest that higher amount of CS would result in higher thermostability of hydrogels. However, APT has no substantial effect on thermal stability. SR decreases with increasing amount of CS. Hydrogels prepared at 70°C reaction temperature exhibit maximum swelling. Furthermore, SR decreases with higher covalence of saltion.

Implementation of Differential Scanning Calorimetry when Studying Polymerization of Compounds Based on Glycolic Acid Ether

2015 ◽  
Vol 1085 ◽  
pp. 441-446
Author(s):  
Olga Babkina ◽  
Elena Vaitulevich ◽  
Olga Gordeeva ◽  
Galima Sarycheva ◽  
Anna L. Nemoykina ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Differential Scanning Calorimetry ◽  
Kinetic Parameters ◽  
Glycolic Acid ◽  
Scanning Calorimetry ◽  
Dynamic Conditions ◽  
Synchronous Thermal Analysis ◽  
Cationic Copolymerization ◽  
Thermodynamic And Kinetic Parameters ◽  
Stannous Octoate

Using differential scanning calorimetry and synchronous thermal analysis under dynamic conditions, kinetic regularities of copolymerization of α- glycolide and a mixture of α-β-glycolidewith D,L-lactide in the presence of stannous octoate as a catalyst have been investigated. Some thermodynamic and kinetic parameters of cationic copolymerization of monomers have been determined.

scholarly journals THERMAL STUDY OF SOLID COMPLEXES OF CERIUM, PRASEODIUM AND NEODIUM

2020 ◽  
pp. 41-45
Author(s):  
Тимофей Владимирович Крюков ◽  
Михаил Игоревич Скобин ◽  
Мариана Александровна Феофанова ◽  
Владимир Георгиевич Алексеев
Keyword(s):  
Thermal Analysis ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Aqueous Solutions ◽  
Sodium Salt ◽  
Complex Compounds ◽  
Thermal Study ◽  
Synchronous Thermal Analysis ◽  
Cefazolin Sodium ◽  
Solid Complexes

Взаимодействием водных растворов хлоридов соответствующих редкоземельных элементов и натриевой соли цефазолина (NaCzl) были получены и выделены в твердом виде комплексные соединения цефазолина. Полученные комплексы имеют состав Me(Czl)•3HO, где Me = Ce+, Pr+, Nd+. Полученные соединения исследованы методом синхронного термического анализа. By the interaction of aqueous solutions of the chlorides of the corresponding rare-earth elements and the cefazolin sodium salt (NaCzl), complex compounds of cefazolin were obtained. The resulting compounds were investigated by synchronous thermal analysis.

scholarly journals Исследование фазовых переходов в кристаллах (Cs,NH-=SUB=-4-=/SUB=-)-=SUB=-4-=/SUB=-(HSO-=SUB=-4-=/SUB=-)-=SUB=-3-=/SUB=-(H-=SUB=-2-=/SUB=-PO-=SUB=-4-=/SUB=-)

2019 ◽  
Vol 61 (12) ◽  
pp. 2405
Author(s):  
Е.В. Селезнева ◽  
И.С. Тимаков ◽  
В.А. Коморников ◽  
В.В. Гребенев ◽  
О.Б. Зайнуллин ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Solid Solution ◽  
Phase Transitions ◽  
Phase Transformations ◽  
Solid Solutions ◽  
Polarization Microscopy ◽  
Synchronous Thermal Analysis ◽  
Structural Modifications

The crystals of solid solution (NH4,Cs)4(HSO4)3(H2PO4) were investigate by synchronous thermal analysis and polarization microscopy methods at heating with the purpose of studying phase transitions in these solid solutions. The temperatures of structural modifications are established, and it is shown that the replacement of Cs cations by NH4 in Cs4(HSO4)3(H2PO4) crystals leads to a decrease in the temperature of phase transformations.

scholarly journals RESEARCH OF THERMAL CHARACTERISTICS OF WILLOW SHOOTS BY DEVICT OF SYNCHRONOUS THERMAL ANALYSIS

2018 ◽  
Vol 37 (2) ◽  
pp. 77-84
Author(s):  
N. V. Dmytrenko ◽  
S. O. Ivanov ◽  
Yu. F. Snezhkin ◽  
L. V. Dekusha
Keyword(s):  
Thermal Analysis ◽  
Heat Capacity ◽  
Specific Heat ◽  
Thermal Characteristics ◽  
Synchronous Thermal Analysis ◽  
Heat Of Evaporation

The article presents the operation principle of the device DMKI-01 and results of determination of heat capacity and specific heat of evaporation from the tree tissues of oneyear shoots of willow.  

scholarly journals SIMULTANEOUS THERMAL ANALYSIS AND RAMAN SPECTROSCOPY AS COMPLEMENTARY METHODS OF DIAGNOSTICS OF CARBON ALLOTROPIC FORMS

2018 ◽  
Vol 59 (8) ◽  
pp. 34
Author(s):  
Irina A. Khabibullina ◽  
Nikolai N. Sitnikov ◽  
Valery A. Kazakov ◽  
Sergeiy K. Sigalaev
Keyword(s):  
Thermal Analysis ◽  
Raman Spectroscopy ◽  
Complex Analysis ◽  
Simultaneous Thermal Analysis ◽  
Synchronous Thermal Analysis ◽  
Complementary Methods ◽  
Carbon Structures ◽  
Forms Of Carbon

Work is devoted to detection of distinctive characteristics of allotropic forms of carbon which would provide their identification from mixes. The complex analysis is offered by methods: the synchronous thermal analysis with studying of composition of the emitted gases and Raman spectroscopy. It was shown that researches of carbon structures and their mixes by the declared methods agree well and complement each other.

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