TY - JOUR
T1 - Prospective theoretical and experimental study towards electrochemically grafted poly(N-vinyl-2-pyrrolidone) films on metallic surfaces
AU - Younang, Elie
AU - Léonard-Stibbe, E.
AU - Viel, Pascal
AU - Defranceschi, Mireille
AU - Lécayon, Gérard
AU - Delhalle, Joseph
PY - 1992
Y1 - 1992
N2 - Quantum chemistry calculations of equilibrium geometry, atomic charges, dipole moment, and frontier orbital energies are carried out on model N-vinyl-2-pyrrolidone, its radical anion and cation, and three protonated derivatives. Attempts to obtain poly(N-vinyl-2-pyrrolidone) films grafted on nickel and platinum electrodes, respectively by cathodic and anodic polarizations, are reported. A thin, covering and insulating film is obtained on the Pt anode, as indicated by surface characterizations carried out with UPS and IRRAS spectroscopies. The fact that the film remains adherent to the metallic surface in spite of a permanent contact with an acetonitrile solution in which poly(N-vinyl-2-pyrrolidone) is soluble suggests that chemisorption has indeed been achieved.
AB - Quantum chemistry calculations of equilibrium geometry, atomic charges, dipole moment, and frontier orbital energies are carried out on model N-vinyl-2-pyrrolidone, its radical anion and cation, and three protonated derivatives. Attempts to obtain poly(N-vinyl-2-pyrrolidone) films grafted on nickel and platinum electrodes, respectively by cathodic and anodic polarizations, are reported. A thin, covering and insulating film is obtained on the Pt anode, as indicated by surface characterizations carried out with UPS and IRRAS spectroscopies. The fact that the film remains adherent to the metallic surface in spite of a permanent contact with an acetonitrile solution in which poly(N-vinyl-2-pyrrolidone) is soluble suggests that chemisorption has indeed been achieved.
M3 - Article
VL - 1
SP - 317
EP - 332
JO - Molecular Engineering
JF - Molecular Engineering
ER -