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  • 1
    Electronic Resource
    Electronic Resource
    A modified concept for the overall rate in radical solution polymerization based on the theory of donor-acceptor complexes (1982)
    Springer
    Polymer bulletin 7 (1982), S. 159-163 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary Experimentally observed deviations from the classical rate laws of radical polymerization in solution can be treated as solvent interactions concerning the growth step. The theory of hot radicals and the theory of donor-acceptor complexes are based on these considerations. It had been shown that the experimental data rather fit the former theory. However by a modification of the latter theory with respect to termination reactions of the different radicals a remarkable equivalence between these different views is exposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00265467
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    International Nuclear Safety Center Database on Thermophysical Properties of Reactor Materials (1999)
    Springer
    International journal of thermophysics 20 (1999), S. 279-287 
    Details
    ISSN: 1572-9567
    Keywords: database ; fuel ; cladding ; material properties ; reactor materials ; thermodynamic properties ; transport properties
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The International Nuclear Safety Center (INSC) database has been established at Argonne National Laboratory to provide easily accessible data and information necessary to perform nuclear safety analyses and to promote international collaboration through the exchange of nuclear safety information. The INSC database, located on the World Wide Web at http://www.insc.anl.gov, contains critically assessed recommendations for reactor-material properties for normal operating conditions, transients, and severe accidents. The initial focus of the database is on thermodynamic and transport properties of materials for water reactors. Materials that are being included in the database are fuel, absorbers, cladding, structural materials, coolants, and liquid mixtures of combinations of UO2, ZrO2, Zr, stainless steel, absorber materials, and concrete. For each property, the database includes (1) a summary of recommended equations with uncertainties; (2) a detailed data assessment giving the basis for the recommendations, comparisons with experimental data and previous recommendations, and uncertainties; (3) graphs showing recommendations, uncertainties, and comparisons with data and other equations; and (4) property values tabulated as a function of temperature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1021463121533
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  • 3
    Electronic Resource
    Electronic Resource
    Enthalpy and heat capacity of the actinide oxides (1982)
    Springer
    International journal of thermophysics 3 (1982), S. 165-200 
    Details
    ISSN: 1572-9567
    Keywords: actinide oxides ; enthalpy ; heat capacity ; plutonium dioxide ; thorium dioxide ; thorium-uranium dioxide ; uraniun dioxide ; uraniun-plutonium dioxide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The available enthalpy data on UO2, ThO2, PuO2, (Th, U)O2, and (Pu, U)O2 have been analyzed and equations have been derived to fit the data. Phase transitions were found in UO2, ThO2, (Th, U)O2, and (Pu, U)O2. The high temperature PuO2 data were too scattered to determine whether a phase transition exists. Above the phase transition temperature, the enthalpy data were fit with a linear equation. Enthalpy data for PuO2 and ThO2 below the phase transition temperature were fit with two-term equations whose contributions are due to phonons and thermal expansion. For UO2 below its phase transition, a term for an electronic contribution was added to this basic equation. Below the phase transitions for (Th, U)O2, enthalpy data were fit by a mole average of the equations used to fit the ThO2 and UO2 data below their phase transitions; however, the mole average equation was not valid for 90 and 92% ThO2 in the mixed oxide. Since it was found that mole averages of the PuO2 and UO2 data do not fit the (Pu, U)O2 data, these data were fit with an equation of the same form as that that used for UO2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00503638
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  • 4
    Electronic Resource
    Electronic Resource
    Determination of in-cage and out-of-cage recombination of initiator radicals in solution polymerization using labeled initiators (1983)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 21 (1983), S. 1445-1455 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The amount of in-cage and out-of-cage recombination of initiator radicals has been measured by recovering the recombination products of simultaneous decomposition of an unlabeled and a deuterium-labeled initiator. The occurrence of recombination products generated from both an unlabeled and a deuterium-labeled initiator fragment, which can be monitored in a mass spectrometer, indicate out-of-cage recombination. It turned out that in the course of decomposition of dibenzoylperoxide in benzene, biphenyl was not produced by direct recombination of the phenyl radicals originally generated, but rather by interaction with benzene. Upon decomposing azoisobutyronitrile in various solvents, however, both in-cage recombination and out-of-cage recombination were observed. When small amounts of styrene were added to such systems, the initiator radicals tended rather to react with styrene than to undergo out-of-cage recombination.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1983.170210518
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  • 5
    Electronic Resource
    Electronic Resource
    Letters to the Editor (1983)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 18 (1983), S. 130-135 
    Details
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/oms.1210180309
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    Paper (German National Licenses)
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