摘要
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.
Thermal decomposition processes of poly(thio-l,4-phenylene) (PPS), polythiophene (PT) and polyaniline (PAn) were investigated by direct pyrolysis EI or CI mass spectrometry (DPMS). They can provide up to heptemer pyrolynates and give some structure properties. The results indicate that the thermal degradation all undergoes in radical decomposition, PPS pyrolyzes into linear and cyclic oligmers, but PT and PAn pyrolyze only into linear oligmers.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1995年第2期173-177,共5页
Acta Chimica Sinica
基金
中国科学院高分子物理联合开放实验室资助项目
