波谱学杂志 ›› 2015, Vol. 32 ›› Issue (2): 208-227.doi: 10.11938/cjmr20150206

• 综述评论 • 上一篇    下一篇

半晶聚乙烯局部和整体分子链运动的固体核磁共振研究

肖婷,姚叶锋*   

  1. 上海市磁共振重点实验室,华东师范大学 物理系,上海 200062
  • 收稿日期:2015-02-12 修回日期:2015-05-11 出版日期:2015-06-05 发布日期:2015-06-05
  • 作者简介:*通讯联系人:姚叶锋,电话:+86-15800767002, E-mail: yfyao@phy.ecnu.edu.cn.
  • 基金资助:

    The National Natural Science Foundation of China (21174039).

Local and Collective Chain Motions in Semi-Crystalline Polyethylenes—A Solid-State NMR Approach

XIAO Ting,YAO Ye-feng*   

  1. Department of Physics & Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062
  • Received:2015-02-12 Revised:2015-05-11 Online:2015-06-05 Published:2015-06-05
  • About author:XIAO Ting(1990-), female, born in Jiangxi, Master student, her research focuses on solid-state NMR of ultra-high molecular weight polyethylene, Tel: +86-18818208038, E-mail: xiaotingas@gmail.com. *Corresponding author: YAO Ye-feng, Tel: +86-15800767002, E-mail: yfyao@phy.ecnu.edu.cn.
  • Supported by:

    The National Natural Science Foundation of China (21174039).

摘要:

固体核磁共振技术是研究半晶聚合物的局部和整体分子链运动的一种非常独特的手段.该文对近年来半晶聚乙烯分子链运动的固体核磁共振研究工作进行了综述,展示了如何应用先进的固体核磁共振技术获得半晶聚乙烯局部和长程分子链运动的详细信息.这些分子层次上的信息对加深聚乙烯宏观机械性质的理解具有非常重要的意义.

关键词: 聚乙烯, 链段运动, 分子链扩散, 固体核磁共振

Abstract:

Solid-state NMR offers a unique way to monitor the local and collective chain motions in semi-crystalline polymers. In this review paper, we will briefly survey recent results on the solid-state NMR study of chain motions in semi-crystalline polyethylenes (PEs). We will demonstrate that the state-of-the-art solid-state NMR now can provide very detailed knowledge about the local and collective chain motions in semi-crystalline PEs, which is of great relevance to our understanding of the mechanical behaviors of polyethylene in the microscopic level.

Key words: polyethylene, segmental motion, chain diffusion, solid-state NMR

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