1996年11月
Radiation effect on polypropylene studied by the relaxational behaviour at low temperature using positron annihilation
POLYMER
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- 巻
- 37
- 号
- 24
- 開始ページ
- 5521
- 終了ページ
- 5524
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/S0032-3861(96)00459-4
- 出版者・発行元
- ELSEVIER SCI LTD
The irradiation effect of gamma-rays on polypropylene (PP) has been studied through relaxational behaviour, using the positron annihilation lifetime (PAL) method. At low temperature, the intensity of a long-lived component of positronium, I-3, for unirradiated PP samples increased due to a termination of the local thermal motion of polymer structures. At 100 K, the increase in I-3 of 1 MGy gamma-ray irradiated samples became very small. However, the increase was observed again in the PP samples after 48 h of irradiation by positrons during the PAL experiment. This suggests a restructuring of the short polymer chains cut by gamma-ray irradiation may occur. Copyright (C) 1996 Elsevier Science Ltd.
- リンク情報
- ID情報
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- DOI : 10.1016/S0032-3861(96)00459-4
- ISSN : 0032-3861
- Web of Science ID : WOS:A1996VV85900024