M. Khaldun et al., DEPENDENCE OF ELECTROCHEMICAL-BEHAVIOR OF POLYETHYLENEIMINE FILMS ON THEIR CROSS-LINKING DEGREE AND THE SUPPORTING-ELECTROLYTE SOLUTION PH, Russian journal of electrochemistry, 30(7), 1994, pp. 799-804
A study of the electrochemical characteristics of glassy carbon electr
odes modified by polyethyleneimine films with different degrees of cro
ss-linking when the acidity of the supporting electrolyte changes is c
arried out. It is shown that as the degree of cross-linking increases,
the stability of the films and the formal coefficient of the charge d
iffusion also increase. An increase in the solution pH leads to a decr
ease in the number of redox anions taking part in the electrode proces
s.