Polystyrene formation on monolayer-modified nitinol effectively controls corrosion

Document Type


Publication Date

Summer 7-16-2008


A surface-initiated polymerization of styrene on carboxylic acid terminated phosphonic monolayers was utilized to increase the corrosion resistance of nitinol and nickel oxide surfaces. Alkyl chain ordering, organic reactions, wettability, and film quality of the monolayers and polymers were determined by infrared spectroscopy, atomic force microscopy, matrix-assisted laser desorption ionization spectrometry, and water contact angles. The polystyrene film proved to be a better corrosion barrier than phosphonic acid monolayers by analysis with cyclic voltammetry and electrochemical impedance spectroscopy. The protection efficiency of the polystyrene film on nitinol was 99.4% and the monolayer was 42%.


The version of record is available from the publisher at http://pubs.acs.org/doi/pdf/10.1021/la801906e. Copyright © 2008 American Chemical Society. All rights reserved. doi:10.1021/la801906e