COLL 277 |
| Marc C. Gurau, Chemistry Department, Texas A&M University, College Station, UT 77843 and Paul S. Cremer, Department of Chemistry, Texas A&M University, MS 3255, College Station, TX 77843. |
| Langmuir monolayers and their associated water structures were perturbed by changing the pressure of the monolayer along with the temperature and ionic content of the subphases. Sum frequency spectra provided insights into the structural changes induced both in the monolayer's alkyl region and the hydrogen bonding network of the near surface water molecules. The methods developed allowed for the experimental determination of the enthalpy of gauche defect formation in an amphiphile's alkyl chain. Additionally, a definitive assignment of the 3400 cm-1 VSFS feature was made, which involved the solvation of the monolayer's headgroups. |
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Vibrational Analyses of Dry and Wet Surfaces
6:00 PM-8:00 PM, Monday, March 29, 2004 Disneyland -- North Exhibit Hall, Poster
Division of Colloid and Surface Chemistry |