摘要
聚对苯硫醚[poly(pphenylenesulfide),简称pPPS]的分子链是由对苯撑基和硫原子交替连接构成而使制品抗冲击能力差[1](有些研究者用共聚或共混的方法在pPPS中引入间位结构来达到减少其结晶度,增强韧性的目的)。余自力等[2]用硫磺溶液法合成了mPPS、pPPS及其共聚物,认为在pP...
Poly(p phenylene sulfide)(p PPS) and poly (m phenylene sulfide)(m PPS) were synthesized from sodium sulfide (Na 2S), p dichlorobenzene(p DCB) and m dichlorobenzene (m DCB) in hexamethylphosphoric triamide (HMPA).Both m PPS and p PPS were characterized by elemental analysis,infrared spectroscopy,X ray diffraction and thermal analysis.The results showed that m PPS and p PPS were crystalline polymers with different crystalline structures.Tg,Tm and thermal stability of m PPS were lower than those of p PPS.
出处
《化学研究与应用》
CAS
CSCD
1999年第4期406-408,共3页
Chemical Research and Application
基金
国家八六三计划新材料领域资助
关键词
聚间苯硫醚
聚对苯硫醚
表征
poly(p phenylene sulfide),poly(m phenylene sulfide),characterization
