Retarded local dynamics of single fluorescent probes in polymeric glass due to interaction strengthening
文献类型：期刊论文
| 作者 | Zhang, Hao1,2; Li, Desheng1,3; Wu, Kui1,3; Wang, Fuyi1,3; Yang, Jingfa1,3; Zhao, Jiang1,3 |
| 刊名 | POLYMER
 |
| 出版日期 | 2017-05-05 |
| 卷号 | 116页码:452-457 |
| 关键词 | Glass Transition Dynamics Single Molecule Fluorescence Hydrogen Bonding |
| 英文摘要 | The effect of strengthening of interaction between single fluorescent probes and polymer matrix to the probes' dynamics is investigated using single molecule fluorescence defocus microscopy. By introducing multiple hydroxyl groups to the fluorescent probes (perylene diimide derivatives) which builds up hydrogen bonds between the probe and polymer matrix, the dynamics is discovered to be retarded. This is evidenced by the lowering of the frequency of the vibrational modes in the power spectra of the rotation trajectories of individual fluorescent probes, and also by the decrease in population of rotating probes. The results show that by strengthening the probe-matrix interaction, the local dynamics detected by the probes is equivalent to that detected by a bigger probe, due to the enhanced friction between the probe and the polymer matrix. (C) 2017 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38376]  |
| 专题 | 化学研究所_高分子物理与化学实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 2.Qingdao Univ Sci & Technol, Sch Polymer Sci & Engn, Key Lab Rubber Plast, Minist Educ, Qingdao 266042, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Hao,Li, Desheng,Wu, Kui,et al. Retarded local dynamics of single fluorescent probes in polymeric glass due to interaction strengthening[J]. POLYMER,2017,116:452-457. |
| APA | Zhang, Hao,Li, Desheng,Wu, Kui,Wang, Fuyi,Yang, Jingfa,&Zhao, Jiang.(2017).Retarded local dynamics of single fluorescent probes in polymeric glass due to interaction strengthening.POLYMER,116,452-457. |
| MLA | Zhang, Hao,et al."Retarded local dynamics of single fluorescent probes in polymeric glass due to interaction strengthening".POLYMER 116(2017):452-457. |
入库方式： OAI收割
来源：化学研究所
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