10-phosphonooleic acid

Interestingly, 10-phosphonooleic acid ( oleic acid-phosphonic acid ), which was obtained via a two-step reaction (Scheme 10.2), was added to the methacrylate formulations (F6). It was shown that the addition of the 10-phosphonooleic acid significantly improved the barrier properties of the coating and as a consequence increased the corrosion protection. 

To analyze the role of the 10-phosphonooleic acid, SEM/EDX analyses were performed on both F4 and F6 coatings (Figure 10.4). From the F4 coating SEM the detected phosphorus quantity is constant through the whole coating... 

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