Determination of solvation kinetics in supercritical fluids. Project summary, August 15, 1993--May 3, 1994
This project is directed on determining effects of supercritical fluids on salvation and chemical reactions. Sub-projects are: understanding the effects of neat and entrainer-modified supercritical fluids on solute-fluid interactions; determining the influence of supercritical fluids on energetics and dynamics of solute conformation; and probing effects of continuous phase density on internal dynamics of reverse micelles formed in supercritical fluids. In order to follow these fast molecular-level processes, modern picosecond in-situ optical spectroscopy is being used. To date this work has: helped define how ``diffusion controlled`` reactions proceed in supercritical fluids; determined how and on what time scale entrainers preferentially solvate solutes in the near-critical region; shown that the conformation (i.e., reactivity) of flexible solutes can be altered easily with fluid density; shown how lateral diffusion within reverse micelles (formed in supercritical alkanes) is affected by the continuous phase density; and begun to probe how the conformation of polymers can be controlled with supercritical fluids. This is leading to a better molecular-level understanding of the chemistry of supercritical fluids.
- Research Organization:
- State Univ. of New York, Buffalo, NY (United States). Dept. of Chemistry
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-90ER14143
- OSTI ID:
- 10173843
- Report Number(s):
- DOE/ER/14143--3; ON: DE94016491; BR: KC0302020
- Country of Publication:
- United States
- Language:
- English
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