Polymer Science from Single Chains Investigated by Scanning Photon Microscopy-Non-statistic Observation of Morphology and Molecular Assembly

扫描光子显微镜研究单链高分子科学-形态和分子组装的非统计观察

• 批准号: 12305061
• 负责人: ITO Shinzaburo
• 金额: $ 29.04万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12305061/
• 关键词: Ultra-thin Films; Polymer; Two-dimensions; Fluorescence Probe; Spectroscopy; Surface; Molecular Mornhology; Molecular Motion; 分子集合構造

This research project is concerned with nanometric investigation of polymers by means of recently developed microscopy, scanning photon microscopy. This new type microscopy enables us to observe single chains with a high resolution over the diffractive limitation of light wave, and the superior performance as an optical microscope has been applied for investigating morphology of single chains, molecular assemblies, interfaces, and monolayers of polymeric materials. So far these researches have been performed on the basis of quantities ensemble-averaged even for the molecular level discussions, but this project is devoted to develop non-averaged, non-statistic polymer science and technology from real image of individual chains. The major issues are listed below.1)Two-dimensional conformation of a single macromolecule embedded in monolayers observed by scanning photon microscopy.2)Surface adsorption, chain morphology and orientation of rigid DNA chains on a solid substrate.3)Inhomogeneous nanometric structure of interpenetrating polymer network studied by fluorescence microscopy and energy transfer kinetics.4)Two-dimensional phase separation of polymer blend monolayers.5)Development of deep UV scanning photon microscope and observation of "non-fluorescnent" polymer samples.

本研究项目是利用新近发展起来的显微镜、扫描光子显微镜对聚合物进行纳米研究。这种新型显微镜使我们能够以高分辨率观察单链，克服了光波的衍射限制，并将其作为光学显微镜的优越性能应用于研究聚合物材料的单链、分子组装、界面和单分子膜的形态。到目前为止，这些研究都是在数量系综平均化的基础上进行的，甚至对于分子水平的讨论也是如此，但这个项目致力于从单个链的真实图像发展非平均化、非统计性的聚合物科学和技术。主要内容如下：1)用扫描光子显微镜观察单个大分子在单分子膜中的二维构象；2)固体基质上刚性DNA链的表面吸附、链形态和取向；3)用荧光显微镜和能量传递动力学研究互穿聚合物网络结构的非均匀纳米结构；4)聚合物共混单分子膜的二维相分离。5)深紫外光扫描光子显微镜的研制和“非荧光”聚合物样品的观察。

项目成果

S.Ito: "UV-SNOM Characterization of Polymer Chains in an Ultrathin Monolayer"Tran.Materials Res.Soc.Jpn.. 26. 929-932 (2001)

S.Ito：“超薄单层聚合物链的 UV-SNOM 表征”Tran.Materials Res.Soc.Jpn.. 26. 929-932 (2001)

H.Aoki: "Two-Dimensional Polymers Investigated by Scanning Near-Field Optical Microscopy : Phase Separation of Polymer Blend Monolayer"J.Phys.Chem.,B. 105. (2001)

H.Aoki：“通过扫描近场光学显微镜研究的二维聚合物：聚合物共混单层的相分离”J.Phys.Chem.，B。

伊藤 紳三郎: "走査型近接場光学顕微鏡"高分子. 51. 829 (2002)

伊藤慎三郎：“扫描近场光学显微镜”聚合物 51. 829 (2002)

H.Aoki: "Nanometric Inhomogeneity of Polymer Network Investigated by Scanning Near-Field Optical Microscopy"Macromolecules. 33. 9650-9656 (2000)

H.Aoki：“通过扫描近场光学显微镜研究聚合物网络的纳米不均匀性”大分子。

Fluorescence Probe Method for Investigating Polymer Structures in Nanometer Dimensions

研究纳米尺寸聚合物结构的荧光探针方法

• 发表时间: 2003
• 期刊: Bull. Chem. Soc. Jpn. 76
• 作者: S.Ito;H.Aoki
• 通讯作者: H.Aoki