Surface prefunctionalization

Scheme 3 Schematic representation of the two-steps electrostatic grafting of a cationic Mni2 derivative on a prefunctionalized gold surface (reprinted from [99])...

Several methods exist to incorporate the functional moiety in an ECP prefunctionalization of the monomer [122,239,242,243], postfunctionalization of the electrosynthesized polymer [244], or simple doping of the ECP [230]. Each one has its own advantages and drawbacks functionalization of the monomer is usually easier than one of the polymer but it usually makes electropolymerization more difficult due to steric hindrance and/or electronic (e.g., inductive) effects. Of course this can be overcome by copolymerization but the functional moiety is more diluted and sometimes less efficient. Conversely, postfunctionalization sometimes leads to an unhomogeneous distribution of the functional moiety in the material due to differences in the reactivity of surface and bulk functional groups. 

Fig. 3.10 Two schemes for organizing magnetic molecules on surfaces. Left prefunctionalized...

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