The synthesis, characterization, and binding studies of polycalixcrowns
| dc.contributor.author | Meyer, Tracy | |
| dc.date.accessioned | 2022-02-18T14:39:13Z | |
| dc.date.available | 2022-02-18T14:39:13Z | |
| dc.date.issued | 2000-05 | |
| dc.description.abstract | Two di-alkylated calix[4]arenecrown-6 and crown-5 monomers in the 1,3-altemate conformation have been synthesized and copolymerized with five silicon containing compounds via hydrosilation polymerization reactions. The ten polymers were characterized using Nuclear Magnetic Resonance (NMR) Spectroscopy, Infrared (IR) Spectroscopy, Thermal Gravimetric Analysis (TGA), and viscosity techniques. The number of repeating units and molecular weights of the polymers ranged from 5 to 10 repeating units and 7000 to 13500 g/mol. The inherent viscosities of the polymers ranged from 0.17 to 0.34 dL/g. The thermal stabilities of the polymers varied between 398 °C and 427 °C at 10% weight loss in arr. The cation binding properties of the two calixcrown monomers and a representative sampling of the polymers were determined using liquid/liquid extraction and Na, K, Rb, and Cs cations. The calixcrown monomers and the corresponding polycalixcrowns bound the cations similarly. The calixcrown-6 compounds exhibited a strong preference for cesium cations and a less significant preference for rubidium, potassium, and sodium cations. The calixcrown-5· compounds exhibited a strong preference for potassium cations followed by a less significant preference for rubidium, cesium, and sodium cations. | |
| dc.description.department | Chemistry and Biochemistry | |
| dc.format | Text | |
| dc.format.extent | 84 pages | |
| dc.format.medium | 1 file (.pdf) | |
| dc.identifier.citation | Meyer, T. M. (2000). The synthesis, characterization, and binding studies of polycalixcrowns (Unpublished thesis). Southwest Texas State University, San Marcos, Texas. | |
| dc.identifier.uri | https://hdl.handle.net/10877/15356 | |
| dc.language.iso | en | |
| dc.subject | calixarenes | |
| dc.subject | binding studies | |
| dc.title | The synthesis, characterization, and binding studies of polycalixcrowns | |
| dc.type | Thesis | |
| thesis.degree.department | Chemistry | |
| thesis.degree.grantor | Southwest Texas State University | |
| thesis.degree.level | Masters | |
| thesis.degree.name | Master of Science |
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