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Effect of uv irradiation on the mobility of the molecular chains in polyethylene

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Polymer Mechanics Aims and scope

Conclusions

1. A decrease in the mobility of molecular chains in polyethylene after UV irradiation was discovered by the spin probe method. This decrease is proportional to the time of irradiation.

2. A discontinuity lacking in unirradiated polyethylene was found on the curve for the logarithm of the rotational correlation time of the spin probe in polyethylene as a function of the inverse temperature. It was shown that the nature of the discontinuity is related to a "thawing out" of the rotational motion of the chains in the crystalline phase.

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Authors
  1. V. A. Belyi
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  2. V. F. Stepanov
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  3. L. S. Koretskaya
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  4. É. G. Rozantsev
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Additional information

Institute of the Mechanics of Metal-Polymer Systems, Academy of Sciences of the Belorussian SSR, Gomel. Translated from Mekhanika Polimerov, No. 4, pp. 603–608, July–August, 1976.

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Belyi, V.A., Stepanov, V.F., Koretskaya, L.S. et al. Effect of uv irradiation on the mobility of the molecular chains in polyethylene. Polymer Mechanics 12, 540–545 (1976). https://doi.org/10.1007/BF00857002

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  • DOI: https://doi.org/10.1007/BF00857002

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