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Isolation and evaluation of extractable materials in commercial polyolefins
Thesis(MSc) -- University of Stellenbosch, 2007.
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| Format: | Thesis |
| Language: | en_ZA |
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Stellenbosch : Stellenbosch University
2012
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| _version_ | 1867613896001454080 |
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| access_status_str | Open Access |
| author | Kotsokoane, Moses T. |
| author2 | Van Reenen, A. J. |
| author_browse | Kotsokoane, Moses T. Van Reenen, A. J. |
| author_facet | Van Reenen, A. J. Kotsokoane, Moses T. |
| author_sort | Kotsokoane, Moses T. |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis(MSc) -- University of Stellenbosch, 2007. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/50727 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:43:25.190Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/50727 Isolation and evaluation of extractable materials in commercial polyolefins Kotsokoane, Moses T. Van Reenen, A. J. Stellenbosch University. Faculty of Science. Dept. of Chemistry and Polymer Science. Polyolefins Polymers Dissertations -- Polymer science Thesis(MSc) -- University of Stellenbosch, 2007. ENGLISH ABSTRACT: Four homopolymer and five propylene-ethylene random copolymer samples produced from two different polypropylene production plants were used as test materials in this study. These materials were isolated into various fractions using the following techniques; xylene and decalin extractions, successive extractions and TREF. The types of fractions isolated with the abovementioned techniques were analysed using GPC, NMR and DSC. From the analytical results it was concluded that the extraction techniques isolate various types of fractions making up the polymer. AFRIKAANSE OPSOMMING: Vier homopolimeer en vyf lukrake kopolimeer monsters wat by twee verskillende polipropileen vervaardigingsaanlegte gemaak is, is gebruik as toetsmateriale in hierdie studie. Die materiale is in verskillende fraksies geisoleer deur gebruik te maak van xileen en dekalien ekstraksies, opeenvolgende ekstraksies, en stygende temperatuur uitloging fraksionering (Eng: "TREF"). Die fraksies wat sodoende geisoleer is, is deur GPC, KMR en DSC geanaliseer. Vanuit die analise-resultate is tot die gevolgtrekking gekom dat die ekstraksietegnieke almal verskillende fraksies van die oorpronklike materiale isoleer. 2012-08-27T11:33:33Z 2012-08-27T11:33:33Z 2007-03 Thesis http://hdl.handle.net/10019.1/50727 en_ZA Stellenbosch University 85 leaves : illustrations application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Polyolefins Polymers Dissertations -- Polymer science Kotsokoane, Moses T. Isolation and evaluation of extractable materials in commercial polyolefins |
| title | Isolation and evaluation of extractable materials in commercial polyolefins |
| title_full | Isolation and evaluation of extractable materials in commercial polyolefins |
| title_fullStr | Isolation and evaluation of extractable materials in commercial polyolefins |
| title_full_unstemmed | Isolation and evaluation of extractable materials in commercial polyolefins |
| title_short | Isolation and evaluation of extractable materials in commercial polyolefins |
| title_sort | isolation and evaluation of extractable materials in commercial polyolefins |
| topic | Polyolefins Polymers Dissertations -- Polymer science |
| url | http://hdl.handle.net/10019.1/50727 |
| work_keys_str_mv | AT kotsokoanemosest isolationandevaluationofextractablematerialsincommercialpolyolefins |