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Determination of water absorption of polyamides prepared from omega-aminoacids
Thesis (M. Sc.) -- University of Stellenbosch, 1990.
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Stellenbosch : Stellenbosch University
2012
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| _version_ | 1867613774976909312 |
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| access_status_str | Open Access |
| author | Cornelissen, Johan Philippus |
| author2 | Sanderson, R. D. |
| author_browse | Cornelissen, Johan Philippus Sanderson, R. D. |
| author_facet | Sanderson, R. D. Cornelissen, Johan Philippus |
| author_sort | Cornelissen, Johan Philippus |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (M. Sc.) -- University of Stellenbosch, 1990. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/67216 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:41:29.531Z |
| 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:10019.1/67216 Determination of water absorption of polyamides prepared from omega-aminoacids Cornelissen, Johan Philippus Sanderson, R. D. Stellenbosch University. Faculty of Science. Dept. of Chemistry & Polymer Science. Water chemistry Polyamides Amino acids Dissertations -- Chemistry Thesis (M. Sc.) -- University of Stellenbosch, 1990. Polyamide-3 (PA-3) and Polyamide-11 (PA-11) and a series of copolymers of PA-3 and PA-11 were prepared by polycondensation of w-aminoacids. Mass changes of the prepared polymers on absorption of water as a function of time and mass percentage water absorbed were monitored. The maximum amount of water absorbed by the polymers correlated with the values predicted by a modified Flory-Huggins theory and an empirical method. The exception was the PA-3 polymer. The amount of water absorbed by the PA-3 polymer was much higher than predicted. This discrepancy was caused by swelling of the polymer. A good agreement was also found between the actual and calculated diffusion coefficient of water in the polymer. Masters 2012-08-27T12:09:45Z 2012-08-27T12:09:45Z 1990 Thesis http://hdl.handle.net/10019.1/67216 en Stellenbosch University 94 pages : ill. application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Water chemistry Polyamides Amino acids Dissertations -- Chemistry Cornelissen, Johan Philippus Determination of water absorption of polyamides prepared from omega-aminoacids |
| title | Determination of water absorption of polyamides prepared from omega-aminoacids |
| title_full | Determination of water absorption of polyamides prepared from omega-aminoacids |
| title_fullStr | Determination of water absorption of polyamides prepared from omega-aminoacids |
| title_full_unstemmed | Determination of water absorption of polyamides prepared from omega-aminoacids |
| title_short | Determination of water absorption of polyamides prepared from omega-aminoacids |
| title_sort | determination of water absorption of polyamides prepared from omega aminoacids |
| topic | Water chemistry Polyamides Amino acids Dissertations -- Chemistry |
| url | http://hdl.handle.net/10019.1/67216 |
| work_keys_str_mv | AT cornelissenjohanphilippus determinationofwaterabsorptionofpolyamidespreparedfromomegaaminoacids |