Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.corsci.2005.02.029
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dc.titleEffects of ring substituents on the protective properties of self-assembled benzenethiols on copper
dc.contributor.authorTan, Y.S.
dc.contributor.authorSrinivasan, M.P.
dc.contributor.authorPehkonen, S.O.
dc.contributor.authorChooi, S.Y.M.
dc.date.accessioned2011-07-26T07:05:47Z
dc.date.available2011-07-26T07:05:47Z
dc.date.issued2006
dc.identifier.citationTan, Y.S., Srinivasan, M.P., Pehkonen, S.O., Chooi, S.Y.M. (2006). Effects of ring substituents on the protective properties of self-assembled benzenethiols on copper. Corrosion Science 48 (4) : 840-862. ScholarBank@NUS Repository. https://doi.org/10.1016/j.corsci.2005.02.029
dc.identifier.issn0010938X
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/24875
dc.description.abstractThe self-assembled monolayers (SAMs) of a series of substituted benzenethiol (BT) molecules, X-C6H4-SH (where X = meta-NH2, ortho-NH2, para-NH2, para-NHCOCH 3, para-F, para-CH3 and para-CH(CH3) 2), have been prepared by adsorption from a solution onto a fresh copper (Cu) surface pretreated by a nitric acid etch. The corrosion inhibition efficiency of the modified Cu surfaces in a sulfuric acid solution was investigated by electrochemical characterization. The protection afforded by the substituted functional groups on BT is strongly influenced by the type and the position of the substituent on the benzene ring. BT molecules without any substituent group on the ring are ineffective corrosion inhibitors, indicating that the chemical configuration is the key factor in determining the efficacy of the SAMs as barriers to electrochemically corrosive ions. It is further proposed that the steric hindrance offered by the substituted group in the SAMs plays a very important role in determining its barrier properties. © 2005 Elsevier Ltd. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.corsci.2005.02.029
dc.sourceScopus
dc.subjectBenzenethiols
dc.subjectCopper
dc.subjectCorrosion
dc.subjectEIS
dc.subjectOrganic inhibitors
dc.typeArticle
dc.contributor.departmentCHEMICAL & BIOMOLECULAR ENGINEERING
dc.contributor.departmentMICROBIOLOGY
dc.contributor.departmentDIVISION OF ENVIRONMENTAL SCIENCE & ENGG
dc.description.doi10.1016/j.corsci.2005.02.029
dc.description.sourcetitleCorrosion Science
dc.description.volume48
dc.description.issue4
dc.description.page840-862
dc.identifier.isiut000236843400005
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