Phynox improved corrosion resistance with MPC initiated from mixed monolayers of phosphonic acids

Bastien Barthélémy, Frédéric Kanoufi, Catherine Combellas, Joseph Delhalle, Zineb Mekhalif

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Résumé

This work investigated the grafting of 11-(2-bromoisobutyrate)-undecyl-1-phosphonic acid (BUPA) and 1-dodecylphosphonic acid (C12PA) to form (mixed) monolayers with different proportions of BUPA and C12PA on Phynox. The role and impact of these grafted molecules have been evaluated in terms of the corrosion resistance and the feasibility to act as a suitable platform for surface initiated atom transfer radical polymerization (ATRP) of 2-(methacryloyloxy)ethyl 2-(trimethylammonio)ethyl phosphate (MPC). It appeared that both molecules play an important role: BUPA to initiate the ATRP polymerization of MPC and C12PA to increase the resistance to corrosion of Phynox substrates. Moreover, the presence of C12PA in the mixed monolayer beneath the poly-2-(methacryloyloxy)ethyl 2-(trimethylammonio)ethyl phosphate (PMPC) layer has a beneficial impact in terms of corrosion resistance.

langue originaleAnglais
Pages (de - à)C544-C549
Nombre de pages6
journalJournal of Electrochemical Society
Volume161
Numéro de publication12
Les DOIs
Etat de la publicationPublié - 2014

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