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  • Polymer and Materials Science  (1)
  • Median ocellus
  • Bemisia argentifolii
  • 1970-1974  (1)
  • 1972  (1)
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  • 1970-1974  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    ISSN: 0449-296X
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Mixtures of sulphur dioxide and butene-1 have been polymerized in the gas phase to the 1:1 alternating copolymer by electron irradiation. The rate of polymerization, measured by the decrease in gas pressure, decreased with increase in temperature over the range -20 to +30°C. The initial G(-monomer) values decreased from 500 to 50 giving an Arrhenius activation energy of -30 kJ mol-1. These results are consistent with a ceiling temperature-pressure relationship. The ceiling temperature is about 60°C lower than that observed previously in the liquid phase in accord with thermo-dynamic prediction.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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