摘要
通过乳液聚合法制备了聚苯乙烯磺酸(PSSA)掺杂态聚苯胺,所得聚苯胺产物的水溶性良好。采用红外光谱、X射线光电子能谱(XPS)等手段对其结构及掺杂状态进行了表征,并利用电化学阻抗技术分析了水溶性聚苯胺在酸性Na Cl溶液中对20#钢的缓蚀性能。结果表明:合成的掺杂态聚苯胺具有较高的导电率;在掺杂聚苯胺的过程中,PSSA以两种状态存在,即掺杂态和游离态;PSSA不仅是提高聚苯胺电导率的掺杂剂,同时还是诱发其水溶性的稳定剂;水溶性聚苯胺在酸性Na Cl溶液中对20#钢具有较好的缓蚀性能,缓蚀率达80%以上。
Polyatyrolsulfon acid doped polyaniline （PSSA-PANI） was synthesized by emulsion po- lymerization method, and then was characterized by IR spectra and XPS. The synthesized PSSA- PANI exhibited good solubility in water. The corrosion inhibition performance of the PSSA-PANI on mild steel was examined in acidic NaC1 solutions by means of electrochemical impedance spec- troscopy （EIS）. The results revealed that PSSA-PANI had a high conductivity. In the synthesized PSSA-PANI, PSSA existed in two states, namely doped-state and free-state, PSSA can improve not only the conductivity but also the water solubility of PANI. The PSSA-PANI showed good corro- sion inhibition for 20# steel in acidic NaC1 media with an inhibition efficiency over 80%.
出处
《中国腐蚀与防护学报》
CAS
CSCD
北大核心
2015年第6期519-524,共6页
Journal of Chinese Society For Corrosion and Protection
关键词
导电高分子
水溶性聚苯胺
掺杂
XPS
缓蚀
conductive polymer, water-soluble PSSA-PANI, doped, XPS, corrosion inhibition
