diplomsko delo
Abstract
Hidrogeli predstavljajo zelo zanimiv material za imobilizacijo biokatalizatorjev na osnovi ujetja v njihovo porozno strukturo. Ustreznost hidrogelov za ta namen določajo njihove lastnosti, kot so prepustnost za substrat oz. produkt, velikost por ter mehanske lastnosti (elastični oz. Youngov modul). Pri naši raziskavi smo želeli povečati prepustnost hidrogelov za hidrofobne molekule z uporabo evtektičnih topil pri njihovi pripravi. Merili smo prepustnosti za etil acetoacetat ter reološke lastnosti hidrogelov z dodanimi različnimi količinami evtektičnih topil. Na osnovi reoloških lastnosti smo ocenili velikost por in Youngov modul. Ugotovili smo, da dodatek 20 % evtektičnega topila k mešanici za pripravo hidrogela poveča velikost por nastalega hidrogela in posledično tudi njegovo prepustnost za etil acetoacetat, zmanjša pa Youngov modul.
Keywords
hidrogeli;lastnosti hidrogelov;prepustnost;velikost por;evtektična topila;elastični modul;diplomska dela;
Data
Language: |
Slovenian |
Year of publishing: |
2022 |
Typology: |
2.11 - Undergraduate Thesis |
Organization: |
UL FKKT - Faculty of Chemistry and Chemical Technology |
Publisher: |
[L. Pinterić] |
UDC: |
544.773.432(043.2) |
COBISS: |
124690691
|
Views: |
27 |
Downloads: |
1 |
Average score: |
0 (0 votes) |
Metadata: |
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Other data
Secondary language: |
English |
Secondary title: |
Use of eutectic solvents in hydrogel synthesis |
Secondary abstract: |
Hydrogels represent a very interesting material for the immobilization of biocatalysts based on entrapment in their porous structure. The suitability of hydrogels for this purpose is determined by their properties, such as permeability to the substrate or product, pore size and mechanical properties (elastic or Young's modulus). In our research, we wanted to increase the permeability of hydrogels to hydrophobic molecules by using eutectic solvents in their preparation. We measured the permeability to ethyl acetoacetate and the rheological properties of hydrogels with added amounts of eutectic solvents. Based on the rheological properties, we estimated the pore size and Young's modulus. We found that the addition of 20 % of the eutectic solvent to the mixture for the preparation of the hydrogel increases the volume of the resulting hydrogel and subsequently also its permeability to ethyl acetoacetate, while decreasing the Young's modulus. |
Secondary keywords: |
eutectic solvents;hydrogel;permeability;pore size;elastic modulus;Univerzitetna in visokošolska dela; |
Type (COBISS): |
Bachelor thesis/paper |
Study programme: |
1000372 |
Embargo end date (OpenAIRE): |
1970-01-01 |
Thesis comment: |
Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, UNI Kemijsko inženirstvo |
Pages: |
27 f. |
ID: |
16354551 |