Development of High-Performance System to Regain the Reliability of X-ray Structural Analysis Data of Crystalline Polymers

开发高性能系统以恢复结晶聚合物 X 射线结构分析数据的可靠性

• 批准号: 03555189
• 负责人: TASHIRO Kohji
• 金额: $ 8.7万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03555189/
• 关键词: Crystalline Polymers; X-ray Structural Analysis; Imaging Plate; イメ-ジングプレ-ト

A new and high-performance X-ray imaging plate system has been developed to apply to the structural study of crystalline polymers.(1) An "almighty" X-ray imaging plate system has been designed and constructed which can be utilized in a variety of application including wide-angle X-ray diffraction measurement, small-angle X-ray scattering measurement, X-ray diffraction measurement of the samples subjected to the external field (tensile force, temperature, etc.), structural analysis of single crystals, and so on.(2) A computer-aided new system of polymer crystal structure analysis has been developed successfully, which can supply the highly accurate X-ray diffraction data necessary for the determination of unit cell parameters, quantitative evaluation of integrated intensity of reflections, and so on.(3) Highly accurate crystal structural analysis by using an imaging plate system has been made for the first time for the single crystal of synthetic polymer, polydiacetylene.(4) X-ray diffr … More action measurement under the application of external tensile force to the oriented polymer samples has been made by using the imaging plate system. Crystallite modulus of orthorhombic polyethylene has been evaluated accurately by using both the (002) reflection, which had been used exclusively so far, and the (004) reflection.(5) Detailed information has been obtained in the study of ferroelectric phase transitions of fluorine copolymers and liquid crystalline polymers through the measurement of X-ray imaging plate image conbined with a newly constructed heating cell.(6) Both the small-angle and wide-angle X-ray scattering patterns have been measured simultaneously on a sheet of imaging plate. The usefulness of this technique has been confirmed in a case study of poly(tetramethylene terephthalate) tensioned at the various strains. The method has been found to be useful for clarifying the intimate relationship between the crystal structure, higher-order structure, and physical properties of crystalline polymers. Less

一种新的高性能X射线成像板系统已被开发应用于结晶聚合物的结构研究。(1)设计和建造了一套“万能”X射线成像板系统，可用于广角X射线衍射测量、小角X射线散射测量、样品在外场(拉力、温度等)作用下的X射线衍射测量、单晶结构分析等。(2)成功开发了一种计算机辅助的新型聚合物晶体结构分析系统。首次利用成像板系统对合成聚合物聚二乙炔单晶进行了高精度的晶体结构分析。(4)X射线衍射仪…利用成像板系统对取向的聚合物样品在外加拉力作用下进行了更多的作用测量。用(002)面反射和(004)面反射准确地估算了正交聚乙烯的微晶模数。(5)通过X射线成像板图像的测量，结合新建立的加热室，获得了研究含氟共聚物和液晶聚合物铁电相变的详细信息。(6)在成像板上同时测量了小角和广角X射线散射图。这项技术的有效性已在不同应变下拉伸的聚对苯二甲酸四亚甲酯的案例研究中得到证实。已发现该方法有助于阐明结晶聚合物的晶体结构、高阶结构和物理性质之间的密切关系。较少

项目成果

K.Tashiro: "Cocrystallization and Phase Segregation of Polyethylene between the D and H Species" Macromolecules. 27. 1234-1239 (1994)

K.Tashiro：“聚乙烯在 D 类和 H 类之间的共结晶和相分离”大分子。

K.Tashiro: "A Computer Aided New System for the X-Ray Structural Analysis of Crystalline Polymers" J.Polym.Sci.:Part B:Polym.Phys.発表予定.

K.Tashiro：“用于结晶聚合物 X 射线结构分析的计算机辅助新系统”J.Polym.Sci.：B 部分：Polym.Phys 计划演示。

K.Tashiro: "First Observation of Polytype Phenomenon of Layer Stacking Structure in Side-Chain-Type Ferroelectric Liquid Crystalline Polymer" Macromolecules. (印刷中).

K. Tashiro：“侧链型铁电液晶聚合物中层堆叠结构的多型现象的首次观察”（正在出版）。

K.Tashiro: "Molecular Theory of Mechanical Properties of Crystalline Polymers" Progr.Polym.Sci.18. 377-435 (1993)

K.Tashiro：“结晶聚合物机械性能的分子理论”Progr.Polym.Sci.18。

K.Tashiro: "Development of Imaging Plate System as a Powerful Tool for the X-ray Structural Study of Polymer Materials" J.Polym.Sci. : Part B : Polym.Phys.(to be published).

K.Tashiro：“开发成像板系统作为高分子材料 X 射线结构研究的强大工具”J.Polym.Sci。