Decoying Process of Surface Potential for Polypyrimidines Containing Azomethine in the Main Chain

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  • HIROHASHI Ryo
    Course of Image Technology, Faculty of Engineering, Chiba University
  • KAKIMOTO Toshio
    Course of Image Technology, Faculty of Engineering, Chiba University
  • UEDA Tamotsu
    Course of Image Technology, Faculty of Engineering, Chiba University
  • HISHIKI Yasushi
    Course of Image Technology, Faculty of Engineering, Chiba University

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Other Title
  • アゾメチン系ポリピリミジンの表面電位減衰
  • アゾメチンケイ ポリピリミジン ノ ヒョウメン デンイ ゲンスイ

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Abstract

Six polypyrimidines were prepared from p-Xylylpyrimidine(l) with p-phenylenediamine (P1, PDA), benzdinene (P2, BD), diaminodiphenylether (P3, DPE), diaminodiphenylmethane (P4, DPM), diaminodiphenylsulfone (P5, DPS) and hexamethylenediamine (P6, HDA). These polymers prepared by polycondensation of carbonyl group and amino group have pyrimidine rings and azomethine in the main chain.<BR> The relationship between chemical structure of polypyrimidines and dark- and light-decay characteristics of surface charge was discussed.<BR> The dark- and light-decay of the surface charge by the negative corona discharge for polypyrimidines were observed. The decaying rates of the sureface potential were found to be in the following order; DPM > PDA > HDA > BD > DPE > DPS for dark decay, DPS > DPE > BD for light decay. The ratio of light decaying constant was found to be greater in the following order; DPS > DPE > BD.

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