SERS技术对聚天冬氨酸缓蚀性能的研究  

SERS Study on the Corrosion Inhibition of Poly(aspartic acid)

作　　者：朱志良[1] 袁莉莉[2] 郜俊影[2] 张荣华[2] 李风亭[1] 

机构地区：[1]同济大学环境科学与工程学院,上海200092 [2]同济大学化学系,上海200092

出　　处：《应用化学》2004年第9期969-970,共2页Chinese Journal of Applied Chemistry

基　　金：教育部骨干教师资助计划资助 (GG- 430-10247-1218)

摘　　要：Polyaspartic acid（PASP） was synthesized by polycondensate of L-aspartic acid using H3PO4 as a catalyst. The corrosion inhibition performance of PASP on carbon steel was studied by a rotating hanging slice method. The results showed that the corrosion inhibitory efficiency rose with the increasing of the concentration of PASP. It also indicated that the highest corrosion inhibitory efficiency reached 93% when the concentration of PASP was 100 mg/L. The strong adsorption signal of PASP on the carbon steel surfaces was detected by surface-enhanced Raman scattering（SERS） technique. The results suggested that the high corrosion inhibitory efficiency appeared owing to the chemical adsorption of carboxyl groups in PASP on steel surface.Polyaspartic acid(PASP) was synthesized by polycondensate of L-aspartic acid using H_(3)PO_(4) as a catalyst. The corrosion inhibition performance of PASP on carbon steel was studied by a rotating hanging slice method. The results showed that the corrosion inhibitory efficiency rose with the increasing of the concentration of PASP. It also indicated that the highest corrosion inhibitory efficiency reached 93% when the concentration of PASP was 100 mg/L. The strong adsorption signal of PASP on the carbon steel surfaces was detected by surface-enhanced Raman scattering(SERS) technique. The results suggested that the high corrosion inhibitory efficiency appeared owing to the chemical adsorption of carboxyl groups in PASP on steel surface.

关 键 词：聚天冬氨酸 缓蚀作用 表面增强拉曼散射 

分 类 号：O643[理学—物理化学] O657.37[理学—化学]