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The synthesis, characterization and properties of new organometallic polymers
We have reviewed recent work on highly branched polymers called dendrimers. Two novel block copolymers consisting of organoruthenium dendritic wedges and linear polyethylene glycol blocks have been prepared. These new block copolymers have been characterized by IR, ¹H and ¹³C NMR, microanalysis, as...
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| Format: | Thesis |
| Language: | English |
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Department of Chemistry
2017
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| _version_ | 1867613315598909440 |
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| access_status_str | Open Access |
| author | Zeng, Renqiang |
| author2 | Moss, John R |
| author_browse | Moss, John R Zeng, Renqiang |
| author_facet | Moss, John R Zeng, Renqiang |
| author_sort | Zeng, Renqiang |
| collection | Thesis |
| description | We have reviewed recent work on highly branched polymers called dendrimers. Two novel block copolymers consisting of organoruthenium dendritic wedges and linear polyethylene glycol blocks have been prepared. These new block copolymers have been characterized by IR, ¹H and ¹³C NMR, microanalysis, as well as size exclusion chromatography. The SEC results of some very large organoruthenium dendrimers are also discussed. The thermal properties of these block copolymers have been studied by differential scanning calorimetry and thermogravimetric analysis. The morphology of these block copolymers have been studied by transmission electron microscopy. We also describe a preliminary thin film study, resulting from the decomposition of some of the block copolymers. Two ruthenium and platinum complexes containing bulky dendritic phosphine ligands, cis-Pt(RDP)₂Cl₂ and trans,trans,trans-RuCl₂(CO)₂(RDP)₂, have been prepared. These new phosphine complexes have been characterized by IR, ¹H, ¹³C and ³¹P NMR, as well as elemental analysis. We also discuss the potential catalytic application of these dendritic phosphine metal complexes in the hydroformylation reaction. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/26231 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:34:10.861Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | Department of Chemistry |
| publisherStr | Department of Chemistry |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/26231 The synthesis, characterization and properties of new organometallic polymers Zeng, Renqiang Moss, John R Chemistry We have reviewed recent work on highly branched polymers called dendrimers. Two novel block copolymers consisting of organoruthenium dendritic wedges and linear polyethylene glycol blocks have been prepared. These new block copolymers have been characterized by IR, ¹H and ¹³C NMR, microanalysis, as well as size exclusion chromatography. The SEC results of some very large organoruthenium dendrimers are also discussed. The thermal properties of these block copolymers have been studied by differential scanning calorimetry and thermogravimetric analysis. The morphology of these block copolymers have been studied by transmission electron microscopy. We also describe a preliminary thin film study, resulting from the decomposition of some of the block copolymers. Two ruthenium and platinum complexes containing bulky dendritic phosphine ligands, cis-Pt(RDP)₂Cl₂ and trans,trans,trans-RuCl₂(CO)₂(RDP)₂, have been prepared. These new phosphine complexes have been characterized by IR, ¹H, ¹³C and ³¹P NMR, as well as elemental analysis. We also discuss the potential catalytic application of these dendritic phosphine metal complexes in the hydroformylation reaction. 2017-11-14T13:51:47Z 2017-11-14T13:51:47Z 1996 2017-03-27T13:10:30Z Master Thesis Masters MSc http://hdl.handle.net/11427/26231 eng application/pdf Department of Chemistry Faculty of Science University of Cape Town |
| spellingShingle | Chemistry Zeng, Renqiang The synthesis, characterization and properties of new organometallic polymers |
| thesis_degree_str | Master's |
| title | The synthesis, characterization and properties of new organometallic polymers |
| title_full | The synthesis, characterization and properties of new organometallic polymers |
| title_fullStr | The synthesis, characterization and properties of new organometallic polymers |
| title_full_unstemmed | The synthesis, characterization and properties of new organometallic polymers |
| title_short | The synthesis, characterization and properties of new organometallic polymers |
| title_sort | synthesis characterization and properties of new organometallic polymers |
| topic | Chemistry |
| url | http://hdl.handle.net/11427/26231 |
| work_keys_str_mv | AT zengrenqiang thesynthesischaracterizationandpropertiesofneworganometallicpolymers AT zengrenqiang synthesischaracterizationandpropertiesofneworganometallicpolymers |