| 聚苯乙烯超微粒子的STM观察 |
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| 引用本文： | 徐伟,陈虞峰,陈殿勇,华中一,吕绪良,府寿宽,于同隐.聚苯乙烯超微粒子的STM观察[J].真空科学与技术学报,1997(2). |
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| 作者姓名： | 徐伟 陈虞峰 陈殿勇 华中一 吕绪良 府寿宽 于同隐 |
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| 作者单位： | 复旦大学材料科学系!上海200433(徐伟，陈虞峰，陈殿勇，华中一)，复旦大学高分子科学系!上海200433(吕绪良，府寿宽，于同隐) |
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| 摘 要： | 发现扫描隧道显微镜可对聚苯乙烯超微粒子进行观察。用水悬浮液及苯饱和溶液使聚苯乙烯表面溶胀后，都可得到清晰的STM像，并首次从溶胀表面的高分辨率STM像观察到高分子链的精细结构和链的镶嵌式自组装形态。
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| 关 键 词： | 聚苯乙烯 超微粒子 扫描隧道显微镜 |
Scanning Tunneling Microscopy of Polystyrene Ultra-fine Particles |
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| Xu Wei,Chen Yufeng,Chen Dianyong, Hua Zhongyi.Scanning Tunneling Microscopy of Polystyrene Ultra-fine Particles[J].JOurnal of Vacuum Science and Technology,1997(2). |
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| Authors: | Xu Wei Chen Yufeng Chen Dianyong Hua Zhongyi |
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| Abstract: | We found that polystyrene ultra-fine particles (UFP) prepared by the microemulsion polymerization procedure can be investigated by STM. Both surfaces of UFP from aqueous suspension and swelled UFP from saturated solution of benzene can give sharp STM images,yet the polymer chains of the UFP surfaces will be dragged by the electric field of the tip during scanning. From high-resolution STM images of the surface of swelled polystyrene UFP,the fine sturcture of polymer chains and the inlay-like self-assembly of the chains have been observed for the first time. |
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| Keywords: | Polystyrene Ultra-fine particle Scanning tunneling microscopy |
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