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  • 1
    Electronic Resource
    Electronic Resource
    Production of molecular nitrogen (A3.SIGMA.) and carbon monoxide (a3.pi.) by mercury (1P1) photosensitization; pressure dependence of 2537-A. emission (1968)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 72 (1968), S. 1402-1402 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100850a064
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Die pulsradiolyse einfacher merkaptane in luft freier wassriger losung
    Amsterdam : Elsevier
    International Journal for Radiation Physics and Chemistry 1 (1969), S. 395-405 
    Details
    ISSN: 0020-7055
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0020-7055(69)90037-0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A thermogravimetric study of phosphonium halides
    Amsterdam : Elsevier
    Thermochimica Acta 45 (1981), S. 177-187 
    Details
    ISSN: 0040-6031
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6031(81)80142-6
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  • 4
    Electronic Resource
    Electronic Resource
    Thermogravimetry of dihydroxyviolanthrone esters
    Amsterdam : Elsevier
    Thermochimica Acta 54 (1982), S. 309-318 
    Details
    ISSN: 0040-6031
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6031(82)80021-X
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  • 5
    Electronic Resource
    Electronic Resource
    A thermogravimetric study of the flame retardant system cyagard RF-1/ammonium polyphosphate
    Amsterdam : Elsevier
    Thermochimica Acta 38 (1980), S. 27-36 
    Details
    ISSN: 0040-6031
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6031(80)87145-0
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  • 6
    Electronic Resource
    Electronic Resource
    Melting behavior and phase diagram of isomeric diisocyanates (1990)
    Springer
    Journal of thermal analysis and calorimetry 36 (1990), S. 319-329 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Mittels DSC, TG, Thermomikroskopie und FTIR/Thermomikroskopie wurden die thermischen Eigenschaften von 1,4-Bis(1-isocyanato-1-methylethyl)benzol (P) und scines isomers 1,3-Bis(1-isocyanato-1-methylethyl)benzol (M), zweier neuartiger Diisocyanat, untersucht. Zu den ermittelten Eigenschaften gehören Schmelzwärme, Schmelzpunkt, Verdampfungsprofil und Phasenverhalten. Die Veränderung des Schmelzverhaltens von (P)/(M)-Gemischen in Abhängigkeit von der Zusammensetzung wurde ebenfalls untersucht.
    Notes: Abstract Differential scanning calorimetry (DSC), thermogravimetry (TG), thermomicroscopy, and FTIR/thermomicroscopy have been used to study the thermal properties of two novel diisocyanates, 1,4-bis(1-isocyanato-1-methylethyl)benzene (P) and its isomer, 1,3-bis(1-isocyanato-1-methylethyl)benzene (M). Properties measured include the heat of fusion, melting point, volatility profile, and phase behavior. The variation of the melt behavior of (P)/(M) mixtures with composition has also been studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01912092
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  • 7
    Electronic Resource
    Electronic Resource
    Kinetic applications of thermal analysis (1985)
    Springer
    Journal of thermal analysis and calorimetry 30 (1985), S. 869-877 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es wurde eine Untersuchung zum Vergleich von zwei Methoden zur Berechnung von kinetischen Parametern aus Ergebnissen thermoanalytischer Experimente unternommen. Beispiele werden angegeben, die die Beziehung zwischen isothermer und nichtisothermer kinetischer Analyse in Bezug auf Komplexizität der Reaktion und Gültigkeit illustrieren. Die thermische Zersetzung verschiedener Verbindungen wurde mittels isothermer und dynamischer Thermogravimetrie (TG) untersucht. Aus den isothermen Versuchsergebnissen wurden die Reaktionsordnung und Aktivierungsenergie nach den üblichen Methoden bestimmt. Aus den dynamischen Versuchsdaten wurden alle drei kinetischen Parameter der Reaktion n-ter Ordnung und deren individuelle 95%-Konfidenzintervalle nach der Methode der kleinsten Fehlerquadrate ermittelt. Beide Methoden setzen eine Temperaturabhängigkeit entsprechend der Arrhenius-Gleichung voraus.
    Abstract: Резюме Проведено сопоставл ение двух вычислител ьных методов, используемы х для определения кинетич еских параметров на о снове термоаналитических данных. Представлены примеры, показывающи е взаимосвязь между с ложностью реакции и обоснованн остью изотермическо го кинетического анали за но отношению к неизотермическому. Т ермическое разложен ие нескольких соединен ий было изучено как изотермическим, так и динамическим метода ми ТГ. Для изотермическо го режима по известны м методам были вычислены поряд ок реакции и энергия активации. Дл я динамического режи ма был использован статист ический метод нелинейных наименьш их квадратов для оцен ки всех трех кинетических параме тровn-го порядка реакции разложения и их 95% доверительных инт ервалов. В обоих методах предпо лагалась аррениусовская темп ературная зависимос ть.
    Notes: Abstract A study was undertaken to compare two computational methods of estimating kinetic parameters from thermoanalytical experiments. Examples illustrating the relationship between reaction complexity and validity of isothermalvs. non-isothermal kinetic analyses will be presented. Thermal decomposition of several compounds was studied both by isothermal and dynamic thermogravimetry (TG). For the isothermal runs, reaction order and activation energy were estimated using established methods. For the dynamic runs, the statistical method of nonlinear least squares was used to estimate all three kinetic parameters of the nth order decomposition reaction and their individual 95% confidence intervals. Both methods assumed Arrhenius temperature dependence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01913314
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  • 8
    Electronic Resource
    Electronic Resource
    The effect of red phosphorus on the flammability of poly(ethylene terephthalate) (1976)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 20 (1976), S. 689-701 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Addition of red phosphorus in concentrations of about 4% to poly(ethylene terephthalate) (PET) reduces the flammability of that polymer. The rates of flame propagation and the ignitability are reduced, while the oxygen index (O.I.) is increased. The surface temperature of burning PET amounts to TS ≈ 380°C; addition of 4% red phosphorus raises this value to TS ≈ 450°C. An increase of the environmental temperature TE enhances the flammability of PET and PET + phosphorus samples; the O.I. decreases and the rate of flame propagation increases with temperature. The flame-retardant effectiveness of red phosphorus is reduced if the sample is burned in a N2O atmosphere. This indicates that part of the flame retardancy imparted by phosphorus involves gas-phase inhibition. The major flame-retardant action does, however, occur in the condensed phase, since the rate of pyrolysis of PET is affected by the presence of red phosphorus.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1976.070200311
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  • 9
    Electronic Resource
    Electronic Resource
    The effect of elemental red phosphorus on the thermal degradation of poly(ethylene terephthalate) (1977)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 21 (1977), S. 1687-1697 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The influence of elemental red phosphorus on the rate of thermal degradation of poly(ethylene terephthalate) has been studied in the temperature range of 400° to 500°C in inert and oxidizing atmospheres by means of isothermal thermogravimetric analysis. Addition of red phosphorus is found to reduce the rates of both the pyrolytic and the thermo-oxidative degradation and to increase the amount of residual char. A correlation of pyrolysis rates with oxygen index data has been attempted.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1977.070210625
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  • 10
    Electronic Resource
    Electronic Resource
    Flame retardancy of polypropylene and impact polystyrene: Phosphonium bromide/ammonium polyphosphate system (1980)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 25 (1980), S. 2195-2204 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The individual and the combined effects of the phosphonium salt Cyagard RF-1 and ammonium polyphosphate on the oxygen index of polypropylene and high-impact polystyrene have been studied. The synergistic action of the two flame retardant components is evaluated quantitatively, and a correlation between char yield and synergism is discussed. The chars are characterized in terms of their elemental composition.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1980.070251006
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