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Permeability of PTFE (teflon) tape as a phase screen in phase-vanishing reactions
| Title: | Permeability of PTFE (teflon) tape as a phase screen in phase-vanishing reactions. |
 169 views 23 downloads |
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| Name(s): |
Parsons, Brendon A. Harriet L. Wilkes Honors College |
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| Type of Resource: | text | |
| Genre: | Thesis | |
| Issuance: | multipart monograph | |
| Date Issued: | 2010 | |
| Publisher: | Florida Atlantic University | |
| Physical Form: | electronic resource | |
| Extent: | vii, 29 p. : ill. (some col.) | |
| Language(s): | English | |
| Summary: | PTFE (Teflon) tape has been reported as an alternative to liquid perfluoroalkanes in fluorous phase-vanishing (PV) reactions. Previous research on PV-PTFE reactions found that PTFE tape has unique characteristics compared to liquid flourous phase screens, including reagent permeabilities that are altered by exposure to certain organic solvents. This study investigates these characteristics by observing the effects of solvent adsorption on the diffusion of bromine and dimethyl phthalate. The directionality of solute diffusion in PV-PTFE chemiluminescence was also studied. Literature on Teflon films and on PV reactions is utilized to explain how the structural and chemical features of PTFE tape influence its permeability, and how solvents alter this permeability. We use structural arguments to explain why chemically-identical bulk PTFE behaves differently from PTFE tape. By better understanding how PTFE tape functions in PV reactions, the method may be improved and its use expanded. | |
| Identifier: | 779616047 (oclc), 3335457 (digitool), FADT3335457 (IID), fau:1413 (fedora) | |
| Note(s): |
by Brendon A. Parsons. Thesis (B.A.)--Florida Atlantic University, Honors College, 2010. Includes bibliography. Electronic reproduction. Boca Raton, Fla., 2010. Mode of access: World Wide Web. |
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| Subject(s): |
Free radicals (Chemistry) Reflectance spectroscopy Polytetrafluoroethylene Fluorine compounds Chemistry, Analytic -- Quantitative |
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| Held by: | FBoU FAUER | |
| Persistent Link to This Record: | http://purl.flvc.org/FAU/3335457 | |
| Use and Reproduction: | Copyright © is held by the author, with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder. | |
| Host Institution: | FAU |
