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http://hdl.handle.net/2289/3159| Title: | Existence of a hydrophobic gap at the alkanethiol SAM - Water interface: An interfacial capacitance study |
| Authors: | Sur, Ujjal Kumar Lakshminarayanan, V. |
| Issue Date: | 15-Oct-2002 |
| Publisher: | Elsevier B.V. |
| Citation: | Journal of Colloid and Interface Science, 2002, Vol.254, p410-413 |
| Abstract: | The highly hydrophobic neat alkanethiol-coated SAM on evaporated gold shows an unusually low interfacial capacitance in aqueous media. This result cannot be explained by a simple parallel plate model of the double layer with the alkanethiol monolayer as a sole dielectric separator. Interestingly, a hydrophilic SAM prepared from a neat hydroxy thiol does not show any such capacitance lowering in aqueous media. Our results suggest the existence of a “hydrophobic gap” between the alkanethiol SAM–water interface. Such a model is also very much consistent with the predictions of Lum, Chandler, and Weeks theory of length scale dependent hydrophobicity. |
| Description: | Restricted Access. |
| URI: | http://hdl.handle.net/2289/3159 |
| ISSN: | 0021-9797 |
| Alternative Location: | http://dx.doi.org/doi:10.1006/jcis.2002.8653 |
| Copyright: | 2002 Elsevier B.V. |
| Appears in Collections: | Research Papers (SCM) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2002 Jrl of Collied & Interface Science V254 410p.pdf Restricted Access | Restricted Access | 109.41 kB | Adobe PDF | View/Open Request a copy |
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