NMR measurements of self-diffusion coefficients of degassed water
| dc.contributor.author | King, Andrew | |
| dc.date.accessioned | 2023-06-07T20:32:11Z | |
| dc.date.available | 2023-06-07T20:32:11Z | |
| dc.date.issued | 2007 | |
| dc.description.abstract | In this project I have measured the molecular self-diffusion coefficient of water in order to quantify the effects of dissolved gas concentration upon self-diffusion. It has been shown that degassing water samples has enhanced the stability of oil-in- water emulsions formed without the aid of stabilizers such as surfactants and polymers 1. Degassing enhances water's ability to work as a solvent of non-polar molecules. There are electrical conductivity changes in the water when it is completely degassed; such a change demonstrates that there is a change in molecular structure. This leads to an interest in the self-diffusion behaviour of the water under these conditions2. The project began with optimization of the phase cycling scheme for the NMR Cotts-13 interval sequence, which measures self-diffusion in the presence of local magnetic field inhomogeneity. This technique development allowed us to measure the self-diffusion coefficient of the water samples that are degassed and non-degassed. | |
| dc.description.copyright | Not available for use outside of the University of New Brunswick | |
| dc.format.extent | ii, 36 pages | |
| dc.format.medium | electronic | |
| dc.identifier.uri | https://unbscholar.lib.unb.ca/handle/1882/34398 | |
| dc.language.iso | en_CA | |
| dc.publisher | University of New Brunswick | |
| dc.rights | http://purl.org/coar/access_right/c_16ec | |
| dc.subject.discipline | Physics | |
| dc.title | NMR measurements of self-diffusion coefficients of degassed water | |
| dc.type | senior report | |
| thesis.degree.discipline | Physics | |
| thesis.degree.fullname | Bachelor of Science in Physics | |
| thesis.degree.grantor | University of New Brunswick | |
| thesis.degree.level | undergraduate | |
| thesis.degree.name | B.Sc. |