Date of Thesis Acceptance
Major Department or Program
We used Xenon-129 nuclear magnetic resonance (NMR) spectroscopy to study the forces present in various surfactant systems. Using the drop weight method, we additionally measured surface tension for these solutions to determine the concentration at which micelles form, known as the critical micelle concentration (CMC). This study aims to catalogue how varying conditions affect the properties of micellar solutions. In this research, we separately added salts, alkanes, hydrotropes, and oppositely charged surfactants to ionic surfactants. These additives tended to affect both the CMC and the micelle structure. Salt additions obeyed the salting out effect, alkane additions did not affect micelle properties, and hydrotrope additions decreased surface tension though their effect on the micelles is still unclear. The addition of positively charged surfactants to negatively charged ones increases surface tension. This information will eventually be used to predict hydrophobic drug solubility in micellar solutions for improved drug delivery targeting.
Critical micelle concentration, Nuclear magnetic resonance spectroscopy -- Experiments, Xenon -- Isotopes, Whitman College 2014 -- Dissertation collection -- Chemistry Department
Public Accessible Thesis
If you have questions about permitted uses of this content, please contact the ARMINDA administrator
Endreo, Tristan Mark, "Xenon-129 NMR and surface tensions of aqueous micelle solutions" (2014). Honors Theses. 219.
In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).