CHED 363 |
| The formation of self-assembled monolayers (SAM)s on polymer electrolyte thin films is monitored via AC impedance spectroscopy. When exposed to a SAM solution a large increase in the bulk real impedance of the sample is observed. Over time the rate of this increase significantly decreases. It is suggested that monolayer formation is the cause of the increase, and its completion is indicated by the stabilization of the real impedance value. Atomic force microscopy is used to characterize the film surfaces before and after SAM formation. The relationship between the SAM-forming molecules' structures and the length of time required to complete SAM formation is discussed. |
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Undergraduate Research Poster Session: Polymer Chemistry
2:30 PM-4:30 PM, Monday, 11 September 2006 Moscone Center -- Hall D, Poster
Division of Chemical Education |