高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (3): 290.

• 研究论文 • 上一篇    下一篇

融熔态聚乙烯辐射交联效果的溶液高分辨13C NMR研究(Ⅱ)

朱清仁1, 堀井之敬2   

  1. 1. 中国科学技术大学结构中心;
    2. 日本京都大学化学研究所
  • 收稿日期:1988-07-27 出版日期:1990-03-24 发布日期:1990-03-24
  • 通讯作者: 朱清仁

Studies on Effects of Radiation-Induced Crosslinks in Polyethylene in Molten State by High-Resolution Solution13C NMR (Ⅱ)

Zhu Qingten1, Fumitaka Horri2   

  1. 1. Structural Center, University of Science and Technology of China, Hefei;
    2. Institute for Chemicaal Research, Kyoto University, U ji, Kyoto 611, Japan
  • Received:1988-07-27 Online:1990-03-24 Published:1990-03-24

摘要: 研究了聚乙烯在低于凝胶化剂量的60Coγ线辐照后,交联结构的形成及其影响因素。结果“H”、“Y”型交联链的生成不仅与辐照剂量有关,而且还与原试样中所含微量异种结构单元相关,但与试样的分子量无关。还讨论了融熔态聚乙烯的辐射交联机制。

关键词: 聚乙烯, 聚合物13C NMR, 辐射诱导交联链

Abstract: Crosslinking structure formed during irradiation of polyethylene with the doses just lower than the gel dose,and the effects for this formation were investigated by 13C NMR Spectra. It is shown that formation of both "H" and "Y" type not only have a connection with irradiated doses, but also a few of other structures containing in the original PE. Nevertheless, are not related to the molecular weight for the PEsamples. The reaction mechanism and the principal factors influencing radiation-induced links arc also discussed for PEin the molten state.

Key words: Polyethylene, 13C NMR of Polymer, Radiation-induced crosslink

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