Nanoscale water condensation on click-functionalized self-assembled monolayers

Simple item page
dc.contributor.authorJames, Men_AU
dc.contributor.authorCiampi, Sen_AU
dc.contributor.authorDarwish, TAen_AU
dc.contributor.authorHanley, TLen_AU
dc.contributor.authorSylvester, SOen_AU
dc.contributor.authorGooding, JJen_AU
dc.date.accessioned2012-02-09T02:33:49Zen_AU
dc.date.available2012-02-09T02:33:49Zen_AU
dc.date.issued2011-09-06en_AU
dc.date.statistics2012-02-09en_AU
dc.description.abstractWe have examined the nanoscale adsorption of molecular water under ambient conditions onto a series of well-characterized functionalized surfaces produced by Cu(I)-catalyzed alkyne–azide cycloaddition (CuAAC or “click†) reactions on alkyne-terminated self-assembled monolayers on silicon. Water contact angle (CA) measurements reveal a range of macroscopic hydrophilicity that does not correlate with the tendency of these surfaces to adsorb water at the molecular level. X-ray reflectometry has been used to follow the kinetics of water adsorption on these “click†-functionalized surfaces, and also shows that dense continuous molecular water layers are formed over 30 h. For example, a highly hydrophilic surface, functionalized by an oligo(ethylene glycol) moiety (with a CA = 34°) showed 2.9 Ã… of adsorbed water after 30 h, while the almost hydrophobic underlying alkyne-terminated monolayer (CA = 84°) showed 5.6 Ã… of adsorbed water over the same period. While this study highlights the capacity of X-ray reflectometry to study the structure of adsorbed water on these surfaces, it should also serve as a warning for those intending to characterize self-assembled monolayers and functionalized surfaces to avoid contamination by even trace amounts of water vapor. Moreover, contact angle measurements alone cannot be relied upon to predict the likely degree of moisture uptake on such surfaces.© 2011, American Chemical Societyen_AU
dc.identifier.citationJames, M., Ciampi, S., Darwish, T. A., Hanley, T. L., Sylvester, S. O., & Gooding, J. J. (2011). Nanoscale water condensation on click-functionalized self-assembled monolayers. Langmuir, 27(17), 10753-10762. doi:10.1021/la202359cen_AU
dc.identifier.govdoc3888en_AU
dc.identifier.issn0743-7463en_AU
dc.identifier.issue17en_AU
dc.identifier.journaltitleLangmuiren_AU
dc.identifier.pagination10753-10762en_AU
dc.identifier.urihttp://dx.doi.org/10.1021/la202359cen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4002en_AU
dc.identifier.volume27en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectMolecular dynamics methoden_AU
dc.subjectFilmsen_AU
dc.subjectSiliconen_AU
dc.subjectHydrogenen_AU
dc.subjectWateren_AU
dc.subjectVapor condensationen_AU
dc.titleNanoscale water condensation on click-functionalized self-assembled monolayersen_AU
dc.typeJournal Articleen_AU
Files
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal Articles