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http://hdl.handle.net/11375/13598
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DC Field | Value | Language |
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dc.contributor.advisor | Vargas-Baca, Ignacio | en_US |
dc.contributor.advisor | Saravanamuttu, Kalaichelvi | en_US |
dc.contributor.advisor | Adronov, Alex | en_US |
dc.contributor.author | Gendy, Chris | en_US |
dc.date.accessioned | 2014-06-18T17:04:32Z | - |
dc.date.available | 2014-06-18T17:04:32Z | - |
dc.date.created | 2013-08-15 | en_US |
dc.date.issued | 2013-10 | en_US |
dc.identifier.other | opendissertations/8433 | en_US |
dc.identifier.other | 9100 | en_US |
dc.identifier.other | 4443751 | en_US |
dc.identifier.uri | http://hdl.handle.net/11375/13598 | - |
dc.description.abstract | <p>The goal of this research project is to synthesize, characterize, and examine the properties of a material that undergoes a decrease in refractive index upon exposure to light. It is anticipated that such photoresponses could elicit previously unknown nonlinear phenomena including self-trapped black beams. An appropriate material for these investigations would be a polymer cross-linked by photocleavable groups causing a Δ<em>n</em> < 0. Organo-ditellurides, molecules that contain a Te-Te bond, would be appropriate for the crosslinks as their σ*<sub>Te-Te</sub> ← n<sub>Te</sub> transition usually absorbs light between 400 and 500 nm, and can lead to photodissociation of the chalcogen-chalcogen bond.</p> <p>Initial attempts to directly functionalize a polymer (polystyrene) resulted in intractable solids. A more promising approach relies on the preparation of cross-linking agents followed by co-polymerization. Despite literature claims, to date, there is no structurally authenticated photoresponsive molecule that simultaneously contains vinyl (CH=CH) and telluride (-Te-) functional groups. The work in this thesis has yielded what would be the first example, in addition to a crystal structure obtained by X-ray diffraction, the compound has been characterized by multinuclear NMR (<sup>1</sup>H, <sup>13</sup>C, <sup>125</sup>Te) and vibrational spectroscopy with the support of DFT calculations.</p> | en_US |
dc.subject | tellurium compounds | en_US |
dc.subject | functionalized polymers | en_US |
dc.subject | photocleavable molecules | en_US |
dc.subject | polymer cross-linkers | en_US |
dc.subject | photorefractive materials | en_US |
dc.subject | main group chemistry | en_US |
dc.subject | photosensitive materials | en_US |
dc.subject | multinuclear NMR | en_US |
dc.subject | Inorganic Chemistry | en_US |
dc.subject | Materials Chemistry | en_US |
dc.subject | Polymer Chemistry | en_US |
dc.subject | Inorganic Chemistry | en_US |
dc.title | INVESTIGATIONS TOWARDS THE PREPARATION OF PHOTORESPONSIVE POLYMERS BASED ON PHOTOCLEAVABLE TELLURIUM-CONTAINING CROSS-LINKS | en_US |
dc.type | thesis | en_US |
dc.contributor.department | Chemistry | en_US |
dc.description.degree | Master of Science (MSc) | en_US |
Appears in Collections: | Open Access Dissertations and Theses |
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fulltext.pdf | 2.22 MB | Adobe PDF | View/Open |
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