Ultraviolet photoelectron spectroscopy of some fundamental vinyl polymers and the evolution of their electronic structures.

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概要

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• UV photoelectron spectra were measured for polypropylene (PP), poly(vinyl fluoride) (PVF), 1,2-polybutadiene (1,2-PBD), poly(vinyl chloride) (PVC), and poly(vinyl alcohol) (PVA). Their threshold ionization energies were found to be 8.5, 9.2, 7.5, 8.8, and 8.0 eV (1 eV≅0.1602 aJ), respectively. The evolution of their electronic structures (from those of small related molecules) were analyzed, mainly, by using the photoelectron spectra of these small compounds (including the new data of 1,2-propanediol). The data of previously measured polyethylene (PE) and polystyrene (PS) were analyzed together. With the results, the polymers were classified into three groups according to the increasing order of localization of the positive hole in the cationic state: (1) PE, PP, and PVF, (2) 1,2-PBD, PVC, and PVA, and (3) PS as a representative of aromatic-pendant polymers.

• 公益社団法人 日本化学会の論文

著者

• Ueno Nobuo

  Department Of Applied Physics Tohoku University

• Inokuchi Hiroo

  Institute For Molecular Science

• Seki Kazuhiko

  Institut Fur Festkorperforschung Forschungszentrum Julich

• UENO Nobuo

  Department of Image Science and Technology, Faculty of Engineering, Chiba University

• SUGITA Kazuyuki

  Department of Image Science and Technology, Faculty of Engineering, Chiba University

• Sugita Kazuyuki

  Department of Graphic Engineering, Faculty of Engineering, Chiba University

• Xian Shang

  Institute for Molecular Science

• Hashimoto Shimpei

  Research Laboratory, Japan Synthetic Rubber Co.

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