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Tunable monoenergy positron annihilation spectroscopy of polyethylene glycol thin films
文献类型：期刊论文
| 作者 | Han, XL; Kuang, P ; Wang BY(王宝义); Xia R(夏锐); Zhang P(张鹏); Cao XZ(曹兴忠); Kuang P(况鹏); Wang, BY; Zhang, P; Xia, R
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| 刊名 | CHINESE PHYSICS B中国物理. B
 |
| 出版日期 | 2017 |
| 卷号 | 26期号:5页码:57802 |
| 关键词 | slow positron coincidence Doppler broadening micro-structure polyethylene glycol membranes |
| ISSN号 | 1674-1056 |
| DOI | 10.1088/1674-1056/26/5/057802 |
| 文献子类 | Article |
| 英文摘要 | Doppler broadening and coincidence Doppler broadening of annihilation radiation experiments have been performed in three kinds of polyethylene glycol (PEG) membrane formed with different average molecular weight using the tunable monoenergy slow positron probe as a function of implantion energy. The obtained positron annihilation parameters are interpreted from two aspects: surface effect and differences in micro-structure or chemical environment of positron annihilation. The experimental results show that the regulation of densification of PEG molecular packing and distribution uniformity from the near surface layer to the bulk region in the film forming process can be well realized by changing its molecular weight. Combining a variable monoenergetic slow positron beam and these two positron annihilation spectroscopy methods is a powerful tool to study positron annihilation characteristics and for polymeric thin-film fine structure analysis. |
| 电子版国际标准刊号 | 1741-4199 |
| WOS关键词 | FREE-VOLUME-HOLES ; FINE-STRUCTURE ; MEMBRANES ; POLYMERS ; PERVAPORATION ; POLYPROPYLENE ; ETHANOL ; BEAMS ; PROBE |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| CSCD记录号 | CSCD:6012927 |
| WOS记录号 | WOS:000402539700001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284738]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Han, XL,Kuang, P,Wang BY,et al. Tunable monoenergy positron annihilation spectroscopy of polyethylene glycol thin films[J]. CHINESE PHYSICS B中国物理. B,2017,26(5):57802. |
| APA | Han, XL.,Kuang, P.,王宝义.,夏锐.,张鹏.,...&Cao, XZ.(2017).Tunable monoenergy positron annihilation spectroscopy of polyethylene glycol thin films.CHINESE PHYSICS B中国物理. B,26(5),57802. |
| MLA | Han, XL,et al."Tunable monoenergy positron annihilation spectroscopy of polyethylene glycol thin films".CHINESE PHYSICS B中国物理. B 26.5(2017):57802. |
入库方式： OAI收割
来源：高能物理研究所
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