Chemical information of chitosan-based complex extracted from coincidence doppler broadening spectra
文献类型：期刊论文
| 作者 | Cao, Xingzhong1; Xia, Rui1; Yang, Jing2; Zeng, Minfeng3; Wang, Baoyi1; Yu, Runsheng1; Wei, Long1 |
| 刊名 | Acta physica polonica a
 |
| 出版日期 | 2017-11-01 |
| 卷号 | 132期号:5页码:1535-1537 |
| ISSN号 | 0587-4246 |
| DOI | 10.12693/aphyspola.132.1535 |
| 通讯作者 | Cao, xingzhong(caoxzh@ihep.ac.cn) |
| 英文摘要 | In recent years, coincidence doppler broadening (cdb) of annihilation radiation measurement on polymeric system has been attracting special attention because of its unique elemental sensitivities in comparison to the traditional doppler broadening measurement. in the present study, chitosan-fe3o4 nanocomposite (cs-fe3o4) and copper-chitosan (cu-cs) complexes were prepared through a simple casting method from aqueous solution. the inclusion of fe3o4 nanoparticles in the chitosan matrix is confirmed by x-ray diffraction. in order to obtain data about atomic composition of the annihilation site in the cs composites, cdb measurements were carried out. the normalized cdb ratio curve, which is related to the ratio between the momentum density distribution for the studied samples and pure cs, was displayed to illustrate the variation of ion cores of different elements present in the chitosan matrix. our result confirms a contribution of active group available in chitosan molecules to the features in the high-momentum region of the cdb ratio curve. the findings show that the local chemical environment of the annihilation site in chitosan-based complexes could be estimated by such positron annihilation spectroscopic investigation. |
| WOS关键词 | POSITRON-ANNIHILATION SPECTROSCOPY ; LEVEL MOLECULAR PACKING ; X-RAY-SCATTERING ; FREE-VOLUME ; ENVIRONMENT ; POLYMERS |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000417870500022 |
| 出版者 | POLISH ACAD SCIENCES INST PHYSICS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2178254 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Cao, Xingzhong |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Multidiscipline Res Ctr, 19 Yuquan Lu, Beijing 100049, Peoples R China 2.Xian Univ Sci & Technol, Dept Appl Phys, Xian 710054, Shaanxi, Peoples R China 3.Shaoxing Univ, Zhejiang Key Lab Alternat Technol Fine Chem Proc, Shaoxing 312000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Xingzhong,Xia, Rui,Yang, Jing,et al. Chemical information of chitosan-based complex extracted from coincidence doppler broadening spectra[J]. Acta physica polonica a,2017,132(5):1535-1537. |
| APA | Cao, Xingzhong.,Xia, Rui.,Yang, Jing.,Zeng, Minfeng.,Wang, Baoyi.,...&Wei, Long.(2017).Chemical information of chitosan-based complex extracted from coincidence doppler broadening spectra.Acta physica polonica a,132(5),1535-1537. |
| MLA | Cao, Xingzhong,et al."Chemical information of chitosan-based complex extracted from coincidence doppler broadening spectra".Acta physica polonica a 132.5(2017):1535-1537. |
入库方式： iSwitch采集
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。