| 熔体结晶聚乙烯晶体的高分辨电子显微学研究 |
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| 引用本文： | 尹丽,陈剑峰,颜世峰,刘雷静,周恩乐.熔体结晶聚乙烯晶体的高分辨电子显微学研究[J].高等学校化学学报,2005,26(10):1972-1974. |
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| 作者姓名： | 尹丽 陈剑峰 颜世峰 刘雷静 周恩乐 |
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| 作者单位： | 中国科学院长春应用化学研究所, 中国科学院长春应用化学研究所, 高分子物理与化学国家重点实验室中国科学院研究生院,长春130022 |
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| 摘 要： | 聚乙烯在一定的不良溶剂中或在熔融结晶的条件下可以得到具有弧形生长边缘的单晶，对于具有弧形边的（200）晶面的形成机理，已有一些研究报道，但由于高分子链具有成千上万个结构单元，使其结晶过程很复杂，可能会导致弧形边的成因有所不同，因此对于弧形边的形成机理有不同的解释。
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| 关 键 词： | 聚乙烯 高分辨电子显微学 晶格像 |
| 文章编号： | 0251-0790（2005）10-1972-03 |
| 收稿时间： | 10 29 2004 12:00AM |
| 修稿时间： | 2004-10-29 |
Studies on Lamellar of Polyethylene Crystal from the Melt with High Resolution Transmission Electron Microscopy |
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| YIN Li,CHEN Jian-Feng,YAN Shi-Feng,LIU Lei-Jing,ZHOU En-Le.Studies on Lamellar of Polyethylene Crystal from the Melt with High Resolution Transmission Electron Microscopy[J].Chemical Research In Chinese Universities,2005,26(10):1972-1974. |
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| Authors: | YIN Li CHEN Jian-Feng YAN Shi-Feng LIU Lei-Jing ZHOU En-Le |
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| Institution: | State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Graduate school of Chinese Academy of Sciences,Changchun 130022,China |
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| Abstract: | The high resolution transmission electron micrographs(HRTEM) of lamellar crystal of polyethylene(PE) obtained from the melt were successfully obtained by using high resolution electron microscopy,although PE is a relatively irradiation sensitive polymer.The HRTEM images with a clear one-dimensional structure(reported) here were recorded in a transmission electron microscope(TEM) operated at 200 kV.The spacing(between) the fringes was found to be 0.37 nm,which is close to the d-spacing of(200) plane. Micrographs image were processed by using optical filtering methods to improve the signal-to-noise ratio. |
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| Keywords: | Polyethylene High resolution transmission electron micrographs(HRTEM) Lattice image |
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