摘要
为了深入研究掺杂剂对聚苯胺水分散液稳定性的影响,通过将不同摩尔比的二乙二醇单甲醚(DEGME)与三氯氧磷(POCl3)反应合成一系列带有短链乙氧基的酸性磷酸酯掺杂剂。在酸性条件下,采用过硫酸铵氧化法制备聚苯胺,经氨水脱掺杂获得本征态聚苯胺;并用傅立叶变换红外光谱、紫外-可见光谱对磷酸酯掺杂剂和聚苯胺的结构进行了表征。将所合成的磷酸酯掺杂剂与本征态或掺杂态聚苯胺混合,研究确定聚苯胺在水中具有最佳分散效果时所对应的POCl3和DEGME的摩尔比。结果表明:当POCl3和DEGME的摩尔比为1∶4时,制备的磷酸酯掺杂聚苯胺的分散稳定性最好。此外,带有短链乙氧基的酸性磷酸酯掺杂本征态聚苯胺比掺杂导电聚苯胺的分散效果好。
In order to gain deeper insight into the effect of dopants on the stability of aqueous dispersion of polyaniline, a series of acidic phosphate dopants with short ethoxy chain were synthesized by reaction of different molar ratio of diethylene glycol monomethyl ether （DEGME） with phosphorus oxychloride （POCl3）. In acidic conditions, polyaniline （PANI） was prepared by oxidization of ammonium persulfate. After it was dedoped with ammonia water,polyaniline emeraldine base was obtained. The structure of dopants and polyaniline was characterized by Fourier transform infrared spectroscopy and ultraviolet-visible spectroscopy. Dopants were blended with polyaniline or doped to form the aqueous dispersion of polyaniline, the corresponding molar ratio of POCl3 and DEGME was determined while PANI had the best dispersancy in water. The results showed that the dispersion stability of PANI in water was up to the best when molar ratio of POCl3 and DEGME was 1 - 4,and the dispersion of polyaniline emeraldine base was better than that of doped PANI.
出处
《化工新型材料》
CAS
CSCD
北大核心
2014年第11期141-143,146,共4页
New Chemical Materials
基金
陕西省教育厅自然科学专项(2013JK0653)
关键词
磷酸酯掺杂剂
聚苯胺
本征态
分散
稳定性
phosphate dopant, polyaniline, eigenstate, dispersion, stability
作者简介
张文治（1980-），男，博士，主要从事有机／高分子光电功能材料的设计与可控制备的研究。
