Molecular Orientation and Photophysical Characteristics of Mono- and Multilayer Polymer Films

单层和多层聚合物薄膜的分子取向和光物理特性

• 批准号: 01550692
• 负责人: ITO Shinzaburo
• 金额: $ 1.09万
• 依托单位: Faculty of Engineering, Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01550692/
• 关键词: Monolayer; Langmuir-Blodgett (LB) Method; Polymer; Amorphous; Layer Structure; Molecular Orientation; Fluorescence Method; Excitation Energy Transfer; ランケミュア-ブロジェット法(LB法); 高分子単分子膜; 累積膜; 光物理過程; エネルギ-移動; 蛍光偏光解析; エキシマ-形成

In this work, ultrathin polymer films were prepared by the Langmuir-Blodgett method, in which the thickness and spatial order of each layer were controlled in molecular dimension by the deposition of monolayer of amphiphilic polymers. Fluorescence method was applied as a probing technique for the structural studies on the polymer LB films. Some polymers were labeled with fluorescent probes and the following points were examined by fluorescence spectroscopy :1. Molecular orientation of polymer chains,2. Distribution of guest molecules in a two-dimensional plane,3. Quality of the Layered Structure,4. Thermal Stability of the Layered Structure.Furthermore, the supermolecular structure was used as a field of photofunctions such as excitation energy transfer and photoinduced electron transfer processes. The photophysical characteristics of polymer LB films were manifested. The results indicated that the amorphous polymers have various advantages as LB materials : variety of the chemical structure, fewer pinholes, thinness of one layer, easy introduction of functional units, and uniform distribution of the guest moieties. These shows that the polymer LB films are promising new materials for realizing artificial molecular assemblies.

本文采用Langmuir-Blodgett方法制备了两亲性聚合物薄膜，通过沉积两亲性聚合物的单层膜，在分子尺度上控制了每层膜的厚度和空间有序性。采用荧光法对聚合物LB膜进行了结构研究。用荧光探针标记了一些聚合物，并通过荧光光谱检查了以下几点：1。高分子链的分子取向，2.客体分子在二维平面上的分布，3.层结构的质量，4.层状结构的热稳定性。此外，超分子结构被用作光功能领域，例如激发能量转移和光诱导电子转移过程。研究了聚合物LB膜的物理特性。结果表明，无定形聚合物作为LB材料具有化学结构多样、针孔少、单层薄、功能单元容易引入、客体分子分布均匀等优点。这表明聚合物LB膜是实现人工分子组装的一种很有前途的新材料。

项目成果

S. Ito, S. Ohmori, and M. Yamamoto: ""Interlayer Energy Transport in Langmuir-Blodgett Polymer Films of Ply-[(carbazolylethyl methacrylate)-co-(isobutyl methacrylate)]"" Macromolecules.

S. Ito、S. Ohmori 和 M. Yamamoto：“Ply-[(甲基丙烯酸咔唑基乙酯)-co-(甲基丙烯酸异丁酯)]”高分子的 Langmuir-Blodgett 聚合物薄膜中的层间能量传输。

Satoru Ohmori: "Excimer Formation and Energy Trapping in Langumuir-Blodgett Films of Poly(vinyl octal)Containing Pyrene Chromophore" Macromolecules,.

Satoru Ohmori：“含有芘发色团的聚（乙烯基八醛）Langumuir-Blodgett 薄膜中的准分子形成和能量捕获”大分子。

S. Ohmori, S. Ito, M. Yamamoto, Y. Yonezawa, and H. Hada: ""Uniform Chromophore Distribution in Langmuir-Blodgett Films of Poly (vinyl octal)"" J. Chem. Soc. Chem. Commun.1989. 1293-1294 (1989)

S. Ohmori、S. Ito、M. Yamamoto、Y. Yonezawa 和 H. Hada：“聚（乙烯基八醛）Langmuir-Blodgett 薄膜中的均匀发色团分布”J. Chem。

S. Ohmori, S. Ito, and M. Yamamoto: ""Layered Structure of Langmuir-Blodgett Polymer Films Measured by Interlayer Energy Transfer"" Macromolecules.

S. Ohmori、S. Ito 和 M. Yamamoto：“通过层间能量转移测量 Langmuir-Blodgett 聚合物薄膜的层状结构”大分子。

Shinzaburo Ito: "Fluorescence Polarization Method for Studying Molecular Orientation of Monoーand Multilayered Polyimide Films Prepared by the LangmuirーBlodgett Technique" Macromolecules. 24. (1991)

Shinzaburo Ito：“用于研究由 Langmuir-Blodgett 技术制备的单层和多层聚酰亚胺薄膜的分子取向的荧光偏振方法”24。（1991）