引用本文:
Guang Han LU, Chuan Yin LIU, Hong Yan ZHAO, Wei LIU, Li Ping JIANG, Ling Yan JIANG. Determination of Surface pKa of Pure Mercaptoacetic Acid and 2-Mercaptobenzothiazole Mixed Monolayers by Impedance Titration[J]. Chinese Chemical Letters,
2004, 15(7): 827-830.
Citation: Guang Han LU, Chuan Yin LIU, Hong Yan ZHAO, Wei LIU, Li Ping JIANG, Ling Yan JIANG. Determination of Surface pKa of Pure Mercaptoacetic Acid and 2-Mercaptobenzothiazole Mixed Monolayers by Impedance Titration[J]. Chinese Chemical Letters, 2004, 15(7): 827-830.
Citation: Guang Han LU, Chuan Yin LIU, Hong Yan ZHAO, Wei LIU, Li Ping JIANG, Ling Yan JIANG. Determination of Surface pKa of Pure Mercaptoacetic Acid and 2-Mercaptobenzothiazole Mixed Monolayers by Impedance Titration[J]. Chinese Chemical Letters, 2004, 15(7): 827-830.
Determination of Surface pKa of Pure Mercaptoacetic Acid and 2-Mercaptobenzothiazole Mixed Monolayers by Impedance Titration
摘要:
Interfacial proton transfer reactions of pure mercaptoacetic acid (MA) and 2-mercaptobenzothiazole (Mbz) mixed self-assembled monolayers (SAMs) have been studied using a.c. impedance titration method. The charge-transfer resistance (Rct) is measured with the monolayer composition and the ionic strength of pH solution. The surface pKa can be obtained by the plots of Rct and pH, the reasons of shifts of surface pKa are also explained.
English
Determination of Surface pKa of Pure Mercaptoacetic Acid and 2-Mercaptobenzothiazole Mixed Monolayers by Impedance Titration
Abstract:
Interfacial proton transfer reactions of pure mercaptoacetic acid (MA) and 2-mercaptobenzothiazole (Mbz) mixed self-assembled monolayers (SAMs) have been studied using a.c. impedance titration method. The charge-transfer resistance (Rct) is measured with the monolayer composition and the ionic strength of pH solution. The surface pKa can be obtained by the plots of Rct and pH, the reasons of shifts of surface pKa are also explained.
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