摘要
以盐酸为掺杂剂,过硫酸铵为氧化剂,采用溶液聚合,合成了片状结构的聚对苯二胺。通过红外光谱(FT-IR)、X射线衍射(XRD)、热分析(TGA/DSC)和扫描电子显微镜(SEM)分别对产物的结构、结晶性、热稳定性和微观形貌进行了表征。结果表明,所得的聚对苯二胺纳米片具有一定的结晶性和良好的热稳定性,聚对苯二胺的形貌与n(HCl)∶n(p-PDA)的比例有关,当n(HCl)∶n(p-PDA)=0.8时最易形成片状纳米聚对苯二胺。讨论了聚对苯二胺纳米片可能的形成机理。
Poly(p-phenylenediamine)(PpPD) nanosheets were synthesized by solution polymerization with HCl as the dopant acid and ammonium peroxydisulfate(APS) as oxidant.The macromolecular structure,crystallinity,thermal stability and morphology of the as-prepared product were characterized by Fourier transform infrared spectroscopy(FT-IR),X-ray diffraction(XRD),thermogravimetric analysis/differential scanning calorimetry(TGA/DSC) and scanning electron microscopy(SEM).The results reveal that the product is partly crystal and exhibits good thermal stability,and the morphology of PpPD is significantly affected by the n(HCl):n(p-PDA) ratio and when the ratio is equal to 0.8,the formation probability of PpPD nanosheets is highest.The possible formation mechanism of PpPD nanosheets is also discussed.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2012年第12期1583-1585,1589,共4页
Journal of Functional Materials
基金
教育部留学归国人员科研启动基金资助项目(2005383)
山东科技大学院士基金资助项目(0610013)
山东科技大学2011-2012年度研究生科技创新基金资助项目(YCB110073)
关键词
聚对苯二胺
纳米片
溶液聚合
结晶性
热稳定性
poly(p-phenylenediamine)
nanosheets
solution polymerization
crystallinity
thermal stability
