ABSTRACT

As reported in previous volumes in the series Silanes and Other Coupling Agents, bis-silanes are attractive coupling agents for the formation of metal protective films

[1-4]. The molecular basis of protective behavior, however, is not understood. Surprisingly, recent work on bis-silane films shows that protective films need not be hydrophobic [5]. Effective corrosion protection is observed with films that harbor 30 vol% water. The silane films typically absorb water with negligible swelling [5-8]. In some cases films actually shrink on water absorption [9].