Three-Coordinate Aluminum Alkyl Complexes for Applications in the Polymerization of Cyclic Esters
| dc.contributor.advisor | Foley, Stephen | en_US |
| dc.contributor.committeeMember | Scott, Robert | en_US |
| dc.contributor.committeeMember | Mueller, Jens | en_US |
| dc.contributor.committeeMember | Odeshi, Akindele | en_US |
| dc.creator | Oberhofer, Amanda | en_US |
| dc.date.accessioned | 2015-10-24T12:01:13Z | |
| dc.date.available | 2015-10-24T12:01:13Z | |
| dc.date.created | 2014-05 | en_US |
| dc.date.issued | 2015-10-23 | en_US |
| dc.date.submitted | May 2014 | en_US |
| dc.description.abstract | Bulky 1,4-diamines 1,2-[2,4,6-(CH3)3-C6H3NH-CH2]2-C6H4 and 1,2-(2,6-iPr2C6H3NHCH2)2-C6H4 were utilized as pro-ligands for the formation of novel three-coordinate aluminum alkyl compounds with the general formula [(1,4-diamido)AlR], where R = Me or Et. The synthesis of analogous aluminum hydrides was also explored resulting in the formation of four-coordinate complexes incorporating bridging hydrides. The three-coordinate aluminum complexes were developed as single-component catalysts in the ring opening polymerization of cyclic esters. The main focus was on caprolactone polymerization, but other monomers were explored, including lactide, butyrolactone, cis-cyclooctene, and diphenylacetylene. The mechanism of polymerization with caprolactone was also studied. The coordination chemistry of other metals and non-metals with the 1,4-diamido ligands were also investigated. Phosphorus, boron, zinc, and zirconium were the main focus. [(1,4-diamido)PCl] complexes were successfully synthesised as precursors to the formation of cationic phosphenium species, [(1,4-diamido)P]+. | en_US |
| dc.identifier.uri | http://hdl.handle.net/10388/ETD-2014-05-1556 | en_US |
| dc.language.iso | eng | en_US |
| dc.subject | three-coordinate aluminum | en_US |
| dc.subject | 1,2- and 1,4- diamido aluminum complexes | en_US |
| dc.subject | aluminum hydride | en_US |
| dc.subject | caprolactone polymerization | en_US |
| dc.subject | phosphenium cation | en_US |
| dc.title | Three-Coordinate Aluminum Alkyl Complexes for Applications in the Polymerization of Cyclic Esters | en_US |
| dc.type.genre | Thesis | en_US |
| dc.type.material | text | en_US |
| thesis.degree.department | Chemistry | en_US |
| thesis.degree.discipline | Chemistry | en_US |
| thesis.degree.grantor | University of Saskatchewan | en_US |
| thesis.degree.level | Masters | en_US |
| thesis.degree.name | Master of Science (M.Sc.) | en_US |