Paramagnetic‐Resonance Studies of Irradiated High‐Density Polyethylene. II. Effect of Irradiation Dose on the Radical Species Trapped at Room Temperature
作者： Elliott J. Lawton , J. S. Balwit , R. S. Powell
DOI: 10.1063/1.1731156
关键词: High-density polyethylene 、 Irradiation 、 Radical 、 Photochemistry 、 Nuclear magnetic resonance 、 Resonance 、 Paramagnetism 、 Crystal 、 Materials science 、 Hyperfine structure 、 Trapping 、 Physical and Theoretical Chemistry 、 General Physics and Astronomy
摘要: The previous paper presented a study of the radical species in irradiated Marlex‐50 at low dose levels. This extends that to level 4000 megaroentgens. kind and relative number each trapped room temperature (RT) depends on degree tightness crystalline crosslinked fractions during irradiation. At least two three distinct species, having different hyperfine structures (six‐, five‐, single‐line) are present varying concentrations all doses. six‐ five‐line radicals crystal, whereas single‐line is highly medium. During irradiation RT liquid‐nitrogen (LN) temperature, crystal not as effective trapping six‐line absence 640 megaroentgens does survive RT, leaving five‐ above this level. appears 320 increase...
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