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Direct visible light initiated SMAnh (Styrene-Maleic anhydride) RAFT mediated copolymerisation
Thesis (MSc)--Stellenbosch University, 2023.
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| Format: | Thesis |
| Language: | en_ZA en_ZA |
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Stellenbosch : Stellenbosch University
2023
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| _version_ | 1867614008776851456 |
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| access_status_str | Open Access |
| author | Brits, Anya |
| author2 | Klumperman, Bert |
| author_browse | Brits, Anya Klumperman, Bert |
| author_facet | Klumperman, Bert Brits, Anya |
| author_sort | Brits, Anya |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MSc)--Stellenbosch University, 2023. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/127371 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA en_ZA |
| last_indexed | 2026-06-10T12:45:13.015Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/127371 Direct visible light initiated SMAnh (Styrene-Maleic anhydride) RAFT mediated copolymerisation Brits, Anya Klumperman, Bert Pfukwa, Rueben Stellenbosch University. Faculty of Science. Dept. of Chemistry and Polymer Science. Photoionization Polymerization Thermal properties Thesis (MSc)--Stellenbosch University, 2023. ENGLISH ABSTRACT: The work contained herein pertains to the practical investigation of light-initiated polymerisation mediated by a RAFT agent, termed Pi-RAFT. Through direct irradiation of a vessel containing the reaction mixture, successful Pi-RAFT was achieved and formed low molecular weight copolymer oligomers. By utilising 1H-NMR spectroscopy, in kinetics studies, the progress of the formation of these oligomers was monitored and gave new insights into precisely where proton signals occur in 1HNMR spectra as monomer insert. Finally, Pi-RAFT was combined with the SUMI technique to help elucidate more exact rate of monomer conversions as well as helping to confirm that selective insertion is possible with Pi-RAFT. AFRIKAANS OPSOMMING: Die werk wat hierin vervat is, het betrekking op die praktiese ondersoek van lig-geïnisieerde polimerisasie bemiddel deur 'n RAFT-middel, genaamd Pi-RAFT. Deur direkte bestraling van 'n houer wat die reaksiemengsel bevat, is suksesvolle Pi-RAFT verkry en het lae molekulêre gewig kopolimeer oligomere gevorm. Deur gebruik te maak van 1H-KMR spektroskopie, in kinetika studies, is die vordering van die vorming van hierdie oligomere gemonitor en het nuwe insigte gegee oor presies waar proton seine voorkom in 1H-KMR spektra as monomeer insetsel. Laastens is Pi-RAFT gekombineer met die SUMI-tegniek om te help om meer presiese tempo van monomeeromsettings toe te lig, asook om te help bevestig dat selektiewe invoeging met Pi-RAFT moontlik is. Masters 2023-03-07T12:15:15Z 2023-05-18T07:18:41Z 2023-03-07T12:15:15Z 2023-05-18T07:18:41Z 2023-03 Thesis http://hdl.handle.net/10019.1/127371 en_ZA en_ZA Stellenbosch University 108 pages : illustrations application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Photoionization Polymerization Thermal properties Brits, Anya Direct visible light initiated SMAnh (Styrene-Maleic anhydride) RAFT mediated copolymerisation |
| title | Direct visible light initiated SMAnh (Styrene-Maleic anhydride) RAFT mediated copolymerisation |
| title_full | Direct visible light initiated SMAnh (Styrene-Maleic anhydride) RAFT mediated copolymerisation |
| title_fullStr | Direct visible light initiated SMAnh (Styrene-Maleic anhydride) RAFT mediated copolymerisation |
| title_full_unstemmed | Direct visible light initiated SMAnh (Styrene-Maleic anhydride) RAFT mediated copolymerisation |
| title_short | Direct visible light initiated SMAnh (Styrene-Maleic anhydride) RAFT mediated copolymerisation |
| title_sort | direct visible light initiated smanh styrene maleic anhydride raft mediated copolymerisation |
| topic | Photoionization Polymerization Thermal properties |
| url | http://hdl.handle.net/10019.1/127371 |
| work_keys_str_mv | AT britsanya directvisiblelightinitiatedsmanhstyrenemaleicanhydrideraftmediatedcopolymerisation |