化学学报 ›› 1995, Vol. 53 ›› Issue (2): 173-177. 上一篇    下一篇

研究论文

几种导电聚合物热分解行为的直接裂解质谱研究

谢红卫;刘淑莹;王利祥   

  1. 中国科学长春应用化学研究所
  • 发布日期:1995-02-15

Thermal decomposition processes of some electrically conduting polyers investigated by direct pyrolysis mass spectrometry

XIE HONGWEI;LIU SHUYIN;WANG LIXIANG   

  • Published:1995-02-15

本文用直接裂解低能电子轰击电离和化学电离质谱(DPMS)等方法研究了聚对苯硫醚(PPS).聚噻吩(PT)和聚苯胺(PAn)的热分解行为和某些结构性质, 能提供多至7个链节重复单元的裂解碎片.结果表明: 几种聚合物的热分解均以自由基方式降解,PPS形成环状和线状齐聚物,PT和PAn只能形成线状齐聚物.

关键词: 质谱法, 裂解, 热重量分析, 聚苯胺, 聚苯硫醚, 自由基, 聚噻吩, 分解机理

Thermal decomposition processes of poly(thio-1,4-phenylene) (PPS), polythiophene, (PT) and polyaniline (PAn) were investigated by direct pyrolysis mass spectrometry. PPS pyrolyzed into linear and cyclic oligomers but PT and PAn only pyrolyzed into linear oligomers.

Key words: MASS SPECTROGRAPHY, PYROLYSIS, THERMOGRAVIMETRY, POLYANILINE, POLYPHENYLENE SULFIDE(PPS), FREE RADICALS

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