CHED 1163 |
| Emulsions are mixtures that contain two immiscible substances in which one of these substances is dispersed in the other as droplets. Mixtures of diethoxydimethylsilane (DEDMS) in water stabilized by nanometer-sized silica particles functionalized with silanes of varying hydrocarbon chain length were prepared in order to determine the effect of the functionalized particles on emulsion stabilization. Droplet stability will be the measure of the degree of efficacy of the functionalized particle stabilization. The relationship between surface density of the grafted hydrocarbon chains and the prevention of coalescence in Pickering emulsions of DEDMS in water en route to the formation of small-molecule encapsulating polydimethysiloxane (PDMS) droplets will also be explored. Solid-particle stabilized PDMS droplets are being investigated for their use as a means of enabling uniform distribution of targeted small molecules (to be encapsulated therein) throughout a host polymer matrix while simultaneously limiting the diffusion of the entrapped substance. |
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Undergraduate Research Poster Session: Inorganic Chemistry
2:00 PM-4:00 PM, Monday, April 7, 2008 Morial Convention Center -- Hall A, Poster
Division of Chemical Education |