Fig. 9
a Imaging ATR-FTIR map showing the distribution of crystalline zinc soaps (1540Â \(\text {cm}^{-1}\)) in bilayer paint model after 30 min ethanol exposure using Evolon CR without controlled solvent loading. The zinc carboxylates containing top layers clearly showed the formation of zinc crystalline zinc soaps, which had been introduced by the SFA (C17) containing bottom layer due to ethanol exposure (direction of solvent flow indicated with arrow). b Corresponding color-coded FTIR spectra: red is at the bottom of the zinc containing layer, green at the top. Image reproduced from [13]