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The protonation of polyaniline (PAN) by a non-volatile acid, H2SO4, has been studied by X-ray photoelectron spectroscopy. The amount of acid incorporated can be effectively varied by varying the synthesis conditions. At a sulphate/monomer ratio of > 0.5, both the HSO~ anion and adsorbed molecular H2SO 4 can be quantitatively differentiated in the S2p core-level spectrum. The Nls core-level spectrum indicates that the amine units of the emeraldine oxidation state of PAN are also susceptible to protonation in the presence of excess H2SO4.

Посилання на статтю:

X-ray photoelectron spectroscopic studies of H2SO 4 protonated polyaniline / E. T. Kang*, K. G. Neoh, Y. L. Woo and K. L. Tant // Polymer. – 1992. – Vol 33. – P. 2857-2859.

X-ray photoelectron spectroscopic studies of H2SO 4 protonated polyaniline - Завантажити.