The thermal behaviour of Poly(ethylene glycol) (PEG)/water systems is the subject of the thesis. Differential Scanning Calorimetry was used to investigate the binary phase diagrams of the PEG/water systems. A new method has been developed that utilizes a special custom-made mixing device to measure mixing enthalpies of the liquid PEG/water systems directly in open measuring cells of Differential Scanning Calorimeters (DSC). The liquidus curves of the water in the binary phase diagram were fit by use of the statistical theory of Flory, Huggins, Staverman und Van Santen in consideration of the mixing enthalpies of the systems. A semi empirical derivation was suggested to fit the liquidus curve and the solidus curve of the PEG in consideration of the solid mixed phase.
| Identifer | oai:union.ndltd.org:DUETT/oai:DUETT:duett-11172002-135117 |
| Date | 18 November 2002 |
| Creators | Jablonski, Pascal |
| Contributors | Prof. Dr. A. Golloch, Prof. Dr. W. Borchard |
| Publisher | Gerhard-Mercator-Universitaet Duisburg |
| Source Sets | Dissertations and other Documents of the Gerhard-Mercator-University Duisburg |
| Language | German |
| Detected Language | English |
| Type | text |
| Format | text/html, application/pdf |
| Source | http://www.ub.uni-duisburg.de/ETD-db/theses/available/duett-11172002-135117/ |
| Rights | unrestricted, I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. Hiermit erteile ich der Universitaet Duisburg das nicht-ausschliessliche Recht unter den unten angegebenen Bedingungen, meine Dissertation, Staatsexamens- oder Diplomarbeit, meinen Forschungs- oder Projektbericht zu veroeffentlichen und zu archivieren. Ich behalte das Urheberrecht und das Recht das Dokument zu veroeffentlichen und in anderen Arbeiten weiterzuverwenden. |
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