Results 311 to 320 of about 504,449 (337)
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1997
Publisher Summary The heat resistance of a polymer may be characterized by its temperatures of initial and of half decomposition. For many polymers, thermal degradation is characterized by the breaking of the weakest bond and is consequently determined by bond dissociation energy. Since the change in entropy is of the same order of magnitude in almost
D.W. Van Krevelen, K. Te Nijenhuis
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Publisher Summary The heat resistance of a polymer may be characterized by its temperatures of initial and of half decomposition. For many polymers, thermal degradation is characterized by the breaking of the weakest bond and is consequently determined by bond dissociation energy. Since the change in entropy is of the same order of magnitude in almost
D.W. Van Krevelen, K. Te Nijenhuis
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THE THERMAL DECOMPOSITION OF PHENYLACETIC ACID [PDF]
Canadian Journal of Chemistry, 1960 The thermal decomposition of phenylacetic acid was investigated by the toluene-carrier technique over the temperature range 587 to 722 °C. The products of the pyrolysis were carbon dioxide, carbon monoxide, hydrogen, methane, dibenzyl, and phenylketene.
Margaret H. Back, A. H. Sehon
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Thermal decomposition of ethane [PDF]
International Journal of Chemical Kinetics, 1979 AbstractThe decomposition of C2H6in Ar was studied by laser‐absorption and laser‐schlieren measurements of the reaction rate behind incident shock waves with 1300 <T< 2500°K and 1.1 < ρ < 4.4 × 10−6mol/cm3. The experimental profiles were parameterized by suitable measures of reaction progress.
D. B. Olson, W. C. Gardiner, T. Tanzawa
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ChemInform Abstract: The Thermal Decomposition of Perfluoroesters. [PDF]
ChemInform, 1998 AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Koichi Murata +2 more
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Thermal decomposition of ethyl parathion
Journal of Loss Prevention in the Process Industries, 1999The thermal decomposition of ethyl parathion, an organophosphorus pesticide, has been studied by coupling calorimetric and chemical analysis. The decomposition process develops through two exothermic events with production of relevant amounts of uncondensible gases (final pressure 50 bar in an ARC run).
ANDREOZZI, ROBERTO +3 more
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Thermal decomposition of 4,4′-diaminodiphenylsulphone
Thermochimica Acta, 1995Abstract The thermal decomposition of 4,4′-diaminodiphenylsulphone (DDS) was studied by thermogravimetry, differential scanning calorimetry and thermal volatilisation analysis. Solid residues, high-boiling and gaseous products of degradation were collected at each step of thermal decomposition and analysed by infrared spectroscopy and gas ...
S. V. Levchik +3 more
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Thermal decomposition of RDX and mixtures
Fuel, 1995AbstractThermal decomposition of pure HMX shows DSC endothermic peaks at 210°C from β to γ phase transformation and at 285°C from the HMX melting followed by an instantaneous exothermic decomposition leading to a strong peak at 290°C and a very strong DTG peak at 325°C with a mass loss of 95%. However, the GS‐2 mixture shows two DSC exothermic peaks at
Gwilym J. Rees, Ghulam Hussain
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Thermal decomposition of β-FeOOH
Materials Letters, 2004beta-FeOOH particles were prepared by a forced hydrolysis of the 0.1 M FeCl3 + 5(.)10(-3) M HCl solution, whereas sulfated beta-FeOOH particles were prepared by forced hydrolysis of the 0.1 M FeCl3 solution containing 5.10(-3) M quinine hydrogen sulfate (QHS).
Stjepko Krehula +2 more
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Thermal decomposition processes in polycarbonates
Polymer Degradation and Stability, 1989The thermal decomposition mechanisms of some polycarbonates have been investigated by direct pyrolysis mass spectrometry. The results indicate that aliphatic polycarbonates decompose by intramolecular exchange processes which produce cyclic compounds as primary pyrolysis products.
Giorgio Montaudo +2 more
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THE THERMAL DECOMPOSITION OF CARBOHYDRATES
Canadian Journal of Research, 1948The thermal decompositions of cellobiose, maltose, dextrose, and potato starch have been studied over a temperature range, by following the production of volatile products. Carbon dioxide, carbon monoxide, and water with small quantities of acids, aldehydes, and volatile solids were produced in all cases.
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