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

基本信息

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

项目摘要

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

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力量，温度等），单晶体的结构分析等。（2）成功开发了计算机辅助的新型聚合物晶体结构分析系统，该系统可以提供高度准确的X射线衍射数据，以确定单位单位细胞参数所需的必要的数据，以确定对反射的集成晶体的一定准确分析的定量评估，以及（3）（3）（3）（3）（3）（3）（3）（3）（3）（3）（3）（3）（3）（4）X射线差异……在外部拉伸力在方向的聚合物样品中应用下进行了更多的作用测量。 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加热电池。（6）在成像板上同时测量了小角度和广角X射线散射模式。该技术的有用性已在各种菌株处张紧的聚（四甲基二苯甲酸酯）张力的案例研究中得到了证实。已发现该方法可用于阐明晶体结构，高阶结构和晶体聚合物的物理特性之间的紧密关系。较少的