Nuclear Magnetic and Mechanical Relaxations in the γ-Loss Band of Linear Polyethylene Irradiation with γ-Rays
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概要
- 論文の詳細を見る
Molecular motion and relaxation processes in the solution-crystallized linear polyethylene irradiated with γ-rays to 100, 200 and 400 Mrad in air are investigated in the temperature range from ca.-170 to -10℃ (γ-region) by means of broad-line nuclear magnetic resonance absorption and dynamic mechanical measurements. Of the three relaxations γ_1, γ_2 and γ_3 appearing in this region the γ_3-relaxation, attributed to the motion of ciliary chains on the lamellar surface, becomes predominant as the amount of irradiation increases. It is suggested that carboxylic end groups are introduced into the ciliary chains produced by oxidative chain scission, because the values of the NMR second moment in the γ-region agree with those of the HNO_3 -treated sample.
- 社団法人応用物理学会の論文
- 1984-04-20
著者
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Hideshima T
Hokkaido Univ. Sapporo Jpn
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Kakizaki M
Hokkaido Univ. Sapporo Jpn
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KAKIZAKI Maeko
Department of Applied Physics, Faculty of Engineering, Hokkaido University
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HIDESHIMA Teruo
Department of Applied Physics, Faculty of Engineering, Hokkaido University
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ANADA Yuichi
Tomakomai National College of Technology
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ANADA Yuichi
Department of Applied Physics, Faculty of Engineering, Hokkaido University
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Kakizaki Maeko
Department Of Applied Physics Faculty Of Engineering Hokkaido University
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Hideshima Teruo
Department Of Applied Physics Faculty Of Engineering Hokkaido University
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