Investigation of Electron Density Mapping of Crystal Structure of Linear Polymers Using Maximum Entropy Method and X-ray Powder Diffraction Data

POSTER

Abstract

The purpose of this study is to visualize the electron density distribution of crystal structure of linear polymers by maximum entropy method (MEM) and X-ray powder profiles measured at SPring-8 (RIKEN, Hyogo, Japan). Crystal structure analysis was carried out for all the reflections by SHELX on WinGX software. Electron density distribution mapping has been investigated for the structure factor (Fobs), phase angle (fcal) and standard deviation (σ) by ENIGMA (Tanaka et al., J. Appl. Cryst., 35, 282-286 (2002)). Tentative results on the MEM analysis for the X-ray powder diffraction data of Polymer crystal will be explained in my poster presentation

*The synchrotron radiation experiments were performed at BL44B2 in SPring-8 with the approval of RIKEN (Proposal No. 20160041, 20170094, 20180039).

Presenters

  • Kosei Noso (Male, M1 student)

    • Dept. Biobased Mater. Sci., Grad. Sch. Sci. Tech.,, Kyoto Inst. Tech.

Authors

  • Sono SASAKI

    • Kyoto Institute of Technology, and RIKEN SPring-8 Center
    • Facl. Fiber Sci. Eng.,, Kyoto Inst. Tech.

  • Junki Yamamoto

    • Dept. Biobased Mater. Sci., Grad. Sch. Sci. Tech.,, Kyoto Inst. Tech.

  • Miho Nagao

    • Dept. Biobased Mater. Sci., Grad. Sch. Sci. Tech.,, Kyoto Inst. Tech.

  • Kenichi Kato

    • SPring-8 Center, RIKEN

  • Masaki TAKATA

    • Inst. Multidiscip. Res. Adv. Mater., Tohoku Univ.
    • Tohoku Univ., Inst. Multidiscip. Res. Adv. Mater.

  • Shinichi SAKURAI

    • Kyoto Institute of Technology
    • Facl. Fiber Sci. Eng.,, Kyoto Inst. Tech.

  • Kosei Noso (Male, M1 student)

    • Dept. Biobased Mater. Sci., Grad. Sch. Sci. Tech.,, Kyoto Inst. Tech.