Please use this identifier to cite or link to this item:
https://scholarbank.nus.edu.sg/handle/10635/89818
Title: | Poly(1-vinylimidazole) formation on copper surfaces via surface-initiated graft polymerization for corrosion protection | Authors: | Yuan, S. Pehkonen, S.O. Liang, B. Ting, Y.P. Neoh, K.G. Kang, E.T. |
Keywords: | A. 1-Vinylimidazole A. Copper C. Coatings C. Corrosion C. Polymerization |
Issue Date: | Jun-2010 | Citation: | Yuan, S., Pehkonen, S.O., Liang, B., Ting, Y.P., Neoh, K.G., Kang, E.T. (2010-06). Poly(1-vinylimidazole) formation on copper surfaces via surface-initiated graft polymerization for corrosion protection. Corrosion Science 52 (6) : 1958-1968. ScholarBank@NUS Repository. | Abstract: | To improve the corrosion resistance of copper, poly(1-vinylimidazole) (P(VIDz)) coatings were tethered on copper via surface-initiated free radical graft polymerization of 1-vinylimidazole. An epoxide-containing trimethoxysilane was first coupled to the hydroxyl-enriched substrates for the introduction of polymerization initiator, 4,4′-azobis-(4-cyanpentanoic acid) (ACP). P(VIDz) brushes were subsequently grafted from the polymerization initiator-immobilized surfaces. The electrochemical behavior and anti-corrosion properties of the functionalized copper coupons in 0.5 M HCl solution were investigated by the measurement of open-circuit potential (OCP) temporal variation, Tafel polarization curves, and electrochemical impedance spectroscopy (EIS). As physical barriers to active species with the chelation of nitrogen and/or the π-conjugation of the ring to copper ions, the P(VIDz) coatings exhibited a high corrosion inhibition efficiency. The stability and integrity of the grafted polymers on copper substrates was evaluated by scanning electron microscopy (SEM) and cyclic voltammetry (CV). © 2010 Elsevier Ltd. All rights reserved. | Source Title: | Corrosion Science | URI: | http://scholarbank.nus.edu.sg/handle/10635/89818 | ISSN: | 0010938X |
Appears in Collections: | Staff Publications |
Show full item record
Files in This Item:
There are no files associated with this item.
Google ScholarTM
Check
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.