Spatial correlation of dynamics of polymer materials studied bysingle molecule spectroscopy

单分子光谱研究高分子材料动力学的空间相​​关性

• 批准号: 24655207
• 负责人: HIROYUKI Aoki
• 金额: $ 2.58万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24655207/
• 关键词: 高分子材料; 単一分子計測; 分子運動; 蛍光顕微鏡; 1分子計測; 単一高分子鎖; 薄膜; ガラス転移

Dynamics heterogeneity is a key concept to understand the glass transition phenomenon; however, it has been difficult to obtain the direct information on the spatial distribution of the mobility of the molecules. In this study, a novel fluorescence microscopy system was developed to observe the dynamics of a single molecule in real time and space. The spatial correlation analysis of the mobility of the molecule revealed that there was no correlation among the molecules at a distance of > 80 nm.

动力学非均质性是理解玻璃化转变现象的关键概念；然而，获得分子迁移率空间分布的直接信息一直很困难。在这项研究中，开发了一种新的荧光显微镜系统，可以实时和空间地观察单个分子的动力学。分子迁移率的空间相关分析表明，在bb0 ~ 80nm范围内，分子间不存在空间相关。

项目成果

Conformation of Single Polymer Chain in Rubbed Thin Film Observed by Fluorescence Imaging

荧光成像观察摩擦薄膜中聚合物单链的构象

• DOI: 10.1021/la302513c
• 发表时间: 2012
• 期刊: Langmuir
• 影响因子: 3.9
• 作者: Toru Ube;Akihiko Shin;Hiroyuki Aoki;Shinzaburo Ito
• 通讯作者: Shinzaburo Ito

Conformation of single polymer chain at interface studied by state-of-the-art optical microscopy

通过最先进的光学显微镜研究界面处单聚合物链的构象

• 发表时间: 2013
• 作者: Toru Ube;Hiroyuki Aoki;Shinzaburo Ito;Jun-ichi Horinaka;Toshikazu Takigawa;Hiroyuki Aoki
• 通讯作者: Hiroyuki Aoki

超解像光学顕微鏡による高分子の配向評価

使用超分辨率光学显微镜评估聚合物取向

• 发表时间: 2012
• 作者: 青木裕之;進章彦;黒田泰樹
• 通讯作者: 黒田泰樹

Relaxation of single polymer chain in binary molecular weight blends observed by scanning near-field optical microscopy

• DOI: 10.1039/c2sm25272d
• 发表时间: 2012-05
• 期刊: Soft Matter
• 影响因子: 3.4
• 作者: T. Ube;H. Aoki;S. Ito;J. Horinaka;T. Takigawa

Quantitative analysis of end-to-end distance of single polymer chain in ultra-thin film by super-resolution fluorescence imaging

• DOI: 10.1016/j.chemphys.2012.12.026
• 发表时间: 2013-06-20
• 期刊: CHEMICAL PHYSICS
• 影响因子: 2.3
• 作者: Aoki, Hiroyuki;Mori, Kazuki;Ito, Shinzaburo
• 通讯作者: Ito, Shinzaburo